This and similar debates are always interesting.
Sherman is a polarizing figure because of his volatile personality more so than anything else. On the field, he's the epitome of what you want in terms of ability, effort, smarts. Even his pals, however, will state that he obsesses over things and is stubborn with a refusal to admit any wrong. This article also points out that he has a real problem blaming others when things go bad.
Wilson is also polarizing. He's the favorite of the coaches and front office. His robotic routine and extreme positivity in dealing with the media isn't becoming and over time it's easy to see how it would annoy teammates. That said, you want your QB to be a steady, focused guy as opposed to someone who falls apart if something does not go right. As far as on the field, he's in the very good to great category at the hardest position in the game. If you look at his on the field production, he's on pace for a HOF career himself. The idea that he's perceived by some as the Dilfer of the 2000 Ravens is just mind boggling.
As for the lingering impact of SB 49, my personal opinion is that it's more of the offense/defense balance that's the issue as opposed to the play itself at this point. In 2016, the offense was way more up and down than in prior years and we all know the reasons why. That said, the defense after ET went out played badly down the stretch.
Drama aside, I do see Pete changing some things up. I think he's clearly redefined what he'll tolerate in terms of individualism and I see their personnel moves largely geared to improving depth and increasing competition. It gets glossed over but there's no question that the 2015/2016 teams had significant roster deficiencies that impacted their ability to win it all.