What Melichoir is pointing to is that outfits designed for one gender don't look as good on the other and this is a function of anatomy. So one solution is to just stick to gender-neutral outfits that they optimise for both, rather than creating two sets, one of which is bound to look crap except to a tiny sliver of the playerbase which is interested in it but which will still take time to make fit on it regardless. Unless you have some manner of special insight as to what they do when designing sets, I don't think you're in much of a position to dictate what is "unwarranted" or not. Time will tell.

As to the other part being a "conspiracy theory", well, whatever. We know businesses, and many entities like them, often will give an official rationale for something that differs from the actual reason behind a decision. You can pretend that doesn't happen, if you like, but that's my guess as to the motivation behind it, rather than the sentimental story Yoshi put out, timed so shortly after the rather abysmal PR disaster surrounding the new races.