I was with you guys earlier in the season, but it's hard to find pass rushers who get a sack a game and have significant impact. AD, healthy JJ Watt, and? Khalil Mack and Von seemed quieter this year, but that might be because their teams were garbage. Even those guys don't wreck opposing gameplans every game. Keep in mind that Watt had Merc and Clowney to help him out a bit and AD has had Robert Quinn, Brockers, et. al who are top picks. Can't expect most pass rushers to come close to those guys anyway.
Again, Clark is second in sacks over three seasons for the Seahawks all time. So far, he's one of the best we've ever drafted and developed. You bring up Bennett as a comparison. I'd like to see film of each of their sacks. I know for a fact that one of Bennett's was when Jared Goff straight up tripped and fell to the ground and Mike B touched him down. Another Mike B got on Dak on a three man rush was 90% Clark manhandling his guy and forcing Prescott into the sack. I'm willing to bet more of Clark's sacks are of the "beat his blocker silly" variety than cleanup sacks.
I agree that the pass rush was very underwhelming this year though.