Because this school is built on traditions which the old seal shows, and the new seal is a ridiculous ploy to implement this mass media graphic in a place where it won't increase any kind of publicity.
I'm signing because I selected Texas A&M as my first choice school (Class of 2020) because it is based off of tradition. It needs to stay that way. Look at Virginia Tech, they have their VT logo and their VPI school seal
Texas A&M is so full of tradition and that is one of the things everyone loves so much. The original had so much character and history behind it. I think everyone (especially alumni) would love for the seal to go back to the traditional one.