You are probably correct. I tend to see the visual stuff the way I see everything related to SH—does it increase or decrease the quality of simulation?
What is immersive for me is to have the targets, sub, world, and enemies behave realistically (and look appropriate).
I remember seeing mod changelogs with stuff about the uniforms, etc, and chuckled 'cause I'd paid as much attention to my XO's hat as I do to any guy's shoes I meet in RL—which is none at all. My wife, OTOH, she'd notice stuff like that.
tater
PS—yes, I'm saying that anyone who notices uniform problems probably pays a lot of attention to men—not that there's anything wrong with that!