I'm in the division, and I hadn't noticed. I hadn't played them since the second week of the season, and though I check my team every day, I certainly don't have time to keep tabs on other teams.
I also read all of my boxscores, but never my opponents. Although if I score more than 15, I'll usually check their pitchers to see if my hitters were really hitting, or if their pitchers were exhausted.
I have to admit, I wondered how his team went from around .600 to .350 in one season, but he had mentioned injuries at one point, and I never looked in at his staff.
And it's not like he was giving up 20 runs a game every day. In the approximately 60 games that he's had some fatigue problems, he's given up over 10 runs 19 times and over 20 runs only twice. In HBD you're probably going to give up over 10 runs about 7-10 times in 60 games anyway, so he's not getting completely trampled.