@jojoxiii
I've been to other -than leviatanscans- websites (novelupdates, mangaupdates, mangakakalots, reddit page for chap 28, a fan wiki
mookhyang-dark-lady.fandom, anime-planet, some spanish and french websites), they mention a lot the gender element, sometimes hinting at the loss of power and sometimes it's confusing which of the gender change or the loss of power is in cause (they talk about "that moment he turned" or in other words).
I concede they both seem to have similar weight in this "exodus", but I still think that the power loss is a reason coming after the gender change and I have two arguments for that.
[ul]First, gender bender as a main twist is a tag that's sensibly unpopular -there are some exceptions, such as ranma 1/2, but they're rare-. [/ul]
[ul]Second the target audience of Mookhyang Dark lady is males who enjoy murim; a female MC is something that is unpopular to men, I can just redirect you to any top 100 anime/manga of the year to prove myself;
though , you might point this out, a "loli" is somewhat a running gag in the otaku culture that can garner some popularity, but here the audience is not targetting said otakus, but people who like more traditional action comics.[/ul]
@Astraea
Nevermind what I've said about "his power coming back now", I've misunderstood your spoiler tag.