Hm. Back when we were arguing about the Legends comic, I seem to recall being repeatedly told that Japan had different cultural values than the US (and therefore anyone who had a problem with anything at all was wrong to voice that opinion ever).
Plus, as much as I hate to admit it, every single anime character is built to suit the audience's tastes so they buy more merch/do other things that allow $$$ to flow in the production committees direction, so the authenticity is certainly not for representation's sake.
Both those anime air at midnight and are aimed at a very specific audience in a whole other media landscape. Major projects have press releases about almost everything, and there are groups just waiting to pat anybody on the back for doing what they want (GLAAD, HRC, etc)
It's funny that a friggin' anime about zombie idols and an anime about a school of anthropomorphic animals can have really positive trans characters WITHOUT a press release about their inclusion in the series prior to the episodes airing or having the creators announcing it on social media and patting themselves on the back for doing a thing.