1. I'm not really sure that's like a super special pass rush group. I mean Judon isn't like a double digit sack guy, Bowser is a rotational player, and Wolfe and Campbell really aren't premier pass rushers anymore (Wolfe specifically). Like I think that group is much better in run defense than in pass defense, and it showed.
2. There is a general thought process, which Eric alluded to this offseason, that pass rush is becoming, to a certain extent, less relevant. Offenses are getting the ball out quicker.
Lamar Jackson is one of the "slowest" in the league in terms of average delivery time, and that's right around 3 seconds. 3 seconds from snap to delivery. Not exactly a lot of time for pass rush.
Also, we played a decent number of games against the quickest to release passers in the league. People figured out by mid-season that there was no point in pressuring more than 4 against Pittsburgh. Ben had an average 2.3 seconds per release. You can assemble an All-Star cast of rushers, and they'll get limited pressure on a guy who pretty consistently gets rid of the ball in under 2.5 seconds.
Andy Dalton, Brandon Allen, Philip Rivers, Dwayne Haskins all at 2.55 seconds or less per release. That's 6 games right there against guys who don't get sacked a lot because they deliver the ball so quickly.
