I mean, they are on thin ice - can you imagine the ruckus parents would do at anything but cis? or the ruckus blogger would do if every "mature and healthy" relationship gets portrayed as necessarily cis? I see them using tropes also as a quick way out.

albeit there's some interesting takes if you search around, like in the amazon "invincible" - but I guess a miniseries has more space for it, and it's for a more adult audience to begin with.

These are Frank Miller comics. The "how would parents react" stuff is right out the window. Gaiman did a whole bunch of stuff with non-hetero sexuality for DC, and he gets TV series to this day.