"Nunu & Willump" is fun because the champion does in fact consist of both Nunu and Willump, but the name creates many different issues. First of all, in game chat, the name is way too long which can be distracting. Secondly, league of legends doesn't label Quinn as "Quinn and Valor" because it's clear that it's not essential to understanding the bond between Quinn and her bird. Third, "Nunu & Willump" on loading screen is also a clutter. Although there is a clear love and connection between Nunu and his Yeti, it's clear that that love is generally understood through quotes, the cinematic and joyful atmosphere around them. Overall, the new Nunu is great, but "Nunu and Willump" shouldn't be necessary considering the love between the two that is clearly there, and that the title itself is "A Boy and His Yeti"