I think a lot of the he/him, they/them stuff with pidge came from the writers allegedly saying that Pidge is supposed to he trans representation. (I say allegedly because we know how much this fandom likes to take things said unofficially and declare them canon). On top of that, it was never specified that Pidge was a trans boy nor (as far as I know) has there been any official statements about pidge being trans at all. Like if you HC it, that's ok, but imma wait until DW makes it official.
It’s bc DW said they have the ability with Netflix to explore sexuality and gender more, didn’t say they would in voltron ill add they just said they can, and bc of that ppl are convinced there is going to be masses of LGBTQ representation in voltron which obviously there won’t be bc it’s still a kids show and DW are limited with what they can get away with. Like people forget that people irl aren’t as tolerant as tumblr in terms of gender and sexuality etc parents go mad about this shit in kids shows and production companies have to be v careful bc at the end of the day they’re there to make profit and having hoards of angry homophobic parents causes a LOT of issues for them as a company