Put it this way, teams like the Giants, Seahawks, Texans, Falcons already KNOW they don’t have their franchise QB on the roster. They should be looking for a QB.
Bears, Jags, and Jets just drafted their would-be franchise QB and are not going to give up on them after one year, unless their careers make a U-turn this season. Therefore, they might trade down with the Seahawks. Hell, the Giants traded down with the Bears, and they have a crap QB. Don’t assume it’s impossible for the Seahawks.
Some GMs may be delusional about the quality of their young QBs. Looking at QBs in the last 4 drafts before 2021:
2020: 1 QB in top 3 draftees
2019: 1 in top 6
2018: 2 in top 6
2017: 1 in top 9
The conclusion is that a lot of poor teams with poor QBs don’t draft a QB even when they have a top-5 position in the draft. This is another reason why it may be possible for the Seahawks to move up to draft a top-