"At the moment we are working to get rid of the gender lock for bunny suits for men."

[Lukha]

If it were rampant among NPCs, maybe you'd have an argument.

But you don't see NPCs running around in bikinis or wedding dresses, either.

I'm honestly not sure if you're serious at this point or trolling, because the arguments you're presenting have no logical continuity between them.
Skimpy outfits and weird costumes don't break your immersion due to the Glamour System lore, even though we don't see NPCs wearing snowman outfits outside of parody.
Guys in skirts breaks your immersion despite the Glamour System lore, because we don't see male NPCs wearing skirts outside of parody.

You've got two logically equivalent statements there that are somehow coming up with different answers; sounds like the problem is with the person doing the 'math' as it were.

I should also point out that there's at least one prominent male NPC who wears a miniskirt and is completely serious about it - Raubahn, whose teeny tiny kilt is not in any way functionally different from a miniskirt. There's also the Flame Elite loincloth, worn by the male Huntmaster NPC at the Flames HQ, which is a long, bright pink skirt with sexy cutouts around the hips. So even if your argument were consistent, it still wouldn't be correct.

What clothes are these? Specifically the second set as it looks really good

1st set - Sailor Shirt (all classes)
2nd set - Sky Pirate's Coat of Healing (Sky Pirate's Coat of Casting is same model with darker fringe)

Both - Uraeus Skirt (all classes), Orison Thighboots.
Everything dyed Colibiri pink.