I would go further and say I wish he hadn't even acknowledged Angela. Just left the ending of Queen Of Hel as it was. It was perfect and it didn't need any twist, with one of them going missing again, only to come back and find out the other one was missing too. It's like he deliberately tried to piss off fans of the couple.
Speaking of QOH's ending, I was just rereading it and gosh, I love them so much. I hope when they get together again, they can finally finish their to-do list. Serangela overthrowing the sexist queendom of Heven is just something I need in my life.
Also, another queer character from Angela's book that I would like to see again: Leah. Yeah, how's Leah? What she's been up to these days? When can we expect her to make out with Magik in honor of the deceased Illyana from her universe? You know, important things like that.