He has had a "high" pick so seldomly; when has a top QB prospect even been available to him? He has picked in the top half of the first round in three drafts, and in each, the next QB to go off the board wasn't until significantly later.
2010 (picks 6, 14): next QB was Tim Tebow at 1.25, followed by Jimmy Clausen at 2.48
2012 (pick 15): next QB was 28-year-old Brandon Weeden at 1.22, followed by Brock Osweiler at 2.57
2023 (pick 5): next QB was Will Levis at 2.33, followed by Hendon Hooker at 3.68
I thought I read that he had to be talked out of taking Russ much higher than he ended up going too. I don't think he necessarily has any philosophy about not drafting QBs early, the ideal situation for it just hasn't come up. I doubt he would have passed on Stroud had he fallen to us last year. He didn't have high picks in Green Bay either, and if he had, they had Aaron Rodgers on the team anyway.
I think it's more likely he's just talking to these guys in case one of them has an unexpected draft day fall and becomes available in a more reasonable trade-up spot. Like if New England addresses QB prior to the draft, they could pass on Maye/Daniels and take Marvin Harrison Jr at 3, and then neither the Cards nor Chargers are likely to take a QB in the two picks after. Regardless, it's not like they have a limited number of combine interviews.
