Whereas; perhaps due to her experience in performance once she got over her initial case of the giggles Mayim has shown herself consistently able to perform at a high level throughout the episodes she's hosted this season. She doesn't go on too long with pointless statistics/monologuing to "make things interesting" (e.g. just because a superchamp's on their 16th game you don't need to go on about how many other things 16 is the number of) in the intros (and she'd never say something like "Happy President's Day to all who celebrate"), she can hold her own with banter in interviews without sounding awkward and she sticks to protocol regarding game pace and would never call a contestant by the wrong name

Whereas; no matter what you may think Ken's streak or him getting Alex's cufflinks entitled him to if Alex had wanted Ken to succeed him he would have said so and could have easily gotten him and if you look at some of his interviews it seems Ken doesn't even want Ken to be the full-time host (he thinks that kind of commitment would take him away from his family).

Whereas; Mayim being a Jewish woman provides some much needed diversity not just to Jeopardy but to game shows as a whole and she's also a woman who's not in this hosting position due to being (like a lot of other female game show hosts are) either a comedian who's supposed to be funny and snarky at contestants (think why Jane Lynch is on The Weakest Link) or someone hot enough to provide eye candy. Also she's a scientist that lends the show some extra credibility (and she's not an anti-vaxxer and if you think the pills she appears in ads for are snake oil, she'd probably have to drop them if she became official full host as the show's sponsored by another brand of memory-booster pills)

Whereas; most of the other things people are saying about her that potentially supposedly make her too problematic to host are untrue. Not only is she not a snake-oil-hawking anti-vaxxer (she and her family are fully vaxxed even for COVID and what she was against regarding the "normal childhood vaccines" wasn't taking them at all, just the schedule of when doctors say you're supposed to take what by what age) but her personality (even in the public persona sense you have to go off of for a celebrity) is nowhere as mean as people make her out to be, she isn't automatically hating Palestine by supporting Israel, and why should it matter if she'd never seen an episode before her kids suggested she host (how much of the original Jeopardy with Art Fleming did Alex Trebek watch)

Whereas; she's the perfect balance of being well-known enough to draw more people in to watching Jeopardy who otherwise wouldn't (even if you're a Big Bang Theory hater you could still say watching Jeopardy because of her might make its viewers actually smart) but being not only as I said someone with actual intellectual credibility but someone not A-list enough to just feel like "celebrity is hosting game show because celebrity", y'know, like how people who didn't know he was a personal friend of Alex's felt when Dr. Oz did his two-week guest-hosting stint or how when my mom was watching an episode of Domino Masters she questioned what connection to domino-stacking made Eric Stonestreet a worthy host. To have someone like her relegated to only part of the year in favor of a guy who's only claim to fame is hyper-specialization feels like nepotism.

Whereas; since when Jeopardy airs means that a lot of families especially who eat in front of the TV end up watching it (when the alternative would be e.g. wait an hour and expose the kids to some primetime crime drama or whatever), Mayim could inspire a lot of young Jewish people and/or girls to intellectually succeed and I don't just mean being potential contestants or even maybe future hosts I mean her background as a scientist that she'd probably still mention making e.g. girls think they can succeed in science too and maybe even curing some kid's imposter syndrome by seeing a person like them making being smart cool. If that is only restricted to part of the year it won't hit these kids at the beginning of the school year where it could impact things like class choice.

Whereas; it seems like the only reason they are even letting Ken have a part of the split-hosting is because Mayim's still got Call Me Kat but that feels less like an accommodation built around Call Me Kat and more like a bone thrown to Ken or his Reddit stan army because I don't see why Call Me Kat couldn't just film in the summer and no offense to the show but I highly doubt it's going to last BBT's 12 seasons so they couldn't keep accommodating it forever

Therefore; Mayim Bialik should be the sole permanent host of Jeopardy either once Call Me Kat ends or if CMK can film in the summer