JL0101
Honestly, I think it would be weirder in the case of The Boys if they made a point of it not being a thing anymore. The setting is “our current world, but with superheroes” not “our world, but with superheroes and without circumcision.” Being set in contemporary USA, it doesn’t feel out of place being there.
There was an interview I read with some of the props & VFX team members about “Love Sausage” (the guy in The Boys whose penis is meters long and prehensile) and they talked about the discussion behind-the-scenes about whether or not that character should be circumcised. For him they decided to leave him uncut, but didn’t elaborate on why other than “it felt right” for that character.
The production makes a lot of practical penis props & sets, so the people doing the manufacturing need to be briefed on what to build. Part of that, I assume, is being told e.g. whether or not their 5-foot tall erect penis prop needs to have foreskin. I wouldn’t be surprised if it’s just easier to build circumcised props at that scale; there’s less material and it’s simply less complex to manufacture.