Taylor's had a bad night EVERY night he's been there. He can neither sing (he has a lousy voice) or dance. His rendition of country road was one of the worst I have ever heard.
BTW, how well would you sing with strep throat? I had to do it once and I was barely able to croak out the song. Given the circumstances, Taylor did very well.
You don't have to have a perfect voice to be successful. Rod Stewart is a good example and there are others.