I am all for more progressive uniforms but there comes a point when for me it gets too silly and breaks immersion.
Exactly. At a certain point it looks too forced, artificial, and "porn-y". I want something that still looks realistic and like actual clothing. It's a fine, tricky line to get just right.
I'd say Priti's outfit here is pretty much as far as you could reasonably go with that and it even pushing it a bit. The short skirt is nice, but might be a little
too short and starting to push into fantasy territory. The shirt is more realistic, but eh... it's just personal preference and I happen to like the classic short-sleeve dress shirt look more.
I think it works and makes sense for Priti's arc, but I wouldn't want to see this become the standard. If anything, I'd want to change the rules to removing underwear from the dress code. Casually being able to see up their skirts, or abusing the inspection rule and being able to force a girl to lift her skirt and show off is a lot more interesting to me personally.
If you're going to go with skimpier uniforms, I'd rather just own up to it and make them go topless or something. It's more honest than pretending that it's still an actual uniform.