....So why does it seem like no one is excited about Living Lightning return?

[Anduinel]

....Eh, this wasn't much different.

Also, his coming out was literally a punchline about a decade back, and, as far as I'm aware, hasn't been addressed since.

If those panels you posted were about the only time Iceman's homosexuality had been brought up, then the situations might be equivalent. But it goes on to be discussed for several pages in that same issue. And in UXM #600. And in Hopeless' All-New X-Men. And in X-Men: Blue. And in Iceman's solo book.

Seriously, if you're going to be this disingenuous, there's no reason to assume that you've got any interest in actual discussion.