They sat him because if he had been hurt in a meaningless game his contract became fully guaranteed. A bit of a sleazy move but understnadable, it's a business.
Taylor is a VERY solid player and reminds me a little of Wilson when he first came in the NFL. He was in the Pro Bowl last year and this year the team had problems, but he wasn't one of them. He also reminds me a little of Doug Flutie, but better.
I know a Bills fan and if they get rid of Taylor he will lose his mind. He's the best QB they have had since Bledsoe. Give Taylor a good OC and a couple of pieces and he will have them in the playoffs.