I'm sorry, is someone here trying to infer the majority (or even a statistically significant percentage) of ESPN viewers are Creationists? That's just plain nutty.
It seems to me Keith Law was a victim of the old Squeaky Wheel policy. The overwhelming majority of people who heard about Curt Schilling's anti-evolution rants most probably simply dismissed him as an idiot and ignored him. But it only takes a tiny population of religious fanatics to write a few hundred emails claiming to be offended, and poor Keith ends up with a boot in the ass.
Sadly, that's the way censorship works. Nobody does anything until somebody claims to be offended. The people who claim to be offended are nearly always a statistically insignificant population of fanatical nutbags. And the media censors respond to them because censoring is easier than putting up with some nutbag's constant complaints.
As Marge said in the famous Simpsons episode on censorship, "One person can make a difference... but most of the time you probably shouldn't."