hmmm. First i'll respond to your post directly, and then I will go in a slightly different direction that still applies to the topic.
As far as blaming it on trash QB's and coaching, I would remove a few QB's from your list either because I think they are fine NFL QB's or because I think their situation leaves more to be blamed on GM or ownership.
Dak - Good NFL QB, imho. Can't base anything off $$$ since NFL QB's get ridiculous contracts. Just how it is
Broncos - Bo Nix has looked better than I expected. Not fair to throw him in this category already
Rodgers - his stats are fine this year for a 41 year old veteran. His completion percentage sucks but hes 8th in yards, top 10 in TDs.... He's a total cancer but I think his stats would be better if the overall team wasn't all over the place.
Hurts - is having a very efficient season. high completion %, low turnovers.... Barkley looks tremendous and the offense is different this year. Smith and AJ Brown also missed multiple games.
Daniel Jones - gotta look right at GM/ownership on this one. Jones should be a backup QB... and unlike Richardson or some of the other names on your list, theres been enough time to determine what Jones is.
What has bothered me more about the NFL and what I think takes away from the product more than people realize is the extra game and expanded playoffs and the trickle down effect it has when it comes to injuries. With an added game and more playoff spots, more teams are alive longer in the season and there is less incentive to rush a player back from injury. I think players who would have missed 1-2 games in the past now get held out for 3-4... it's easier to shove a player on the IL, easier to continue to have a star player miss games to get them as close to 100% as possible if the team is still winning or treading water. The Rams are a great example. Puka didn't miss a beat last night. Kupp looked good too. Do we really think they couldn't have played in week 7? But there is less urgency. The Rams are now 3-4 in a wide open NFC West. that extra game and extra wildcard spot make a big difference. Stafford would have much better numbers with more games played by his top two WR's and Rams games would be higher scoring with those stars on the field. That's just one example.