To be fair, it's been years since the last time characters were made to react to losses of friends. So I can't fault Foxe (and Gambit) for not even saying a line about Warren's death. (yes, I would've wanted Remy to acknowledge it at least in a ballon, off course).
The time of Ororo&Hank mopping around for months about Betsy's death (and Warren joining too late in the thing, showing up angry in the X-Treme X-Men Posé) is long gone. I'm sure there are titles in which deaths are mourned, but recently... well, feelings aren't much a focus of the stories. Back then, when someone died, you got at least a page remembering them, a collage of their feats or hurdles, or their friends/team-mate shown to go to the funeral. Remember when Piotr sacrificed himself? Kurt's death during Messiah War took many pages, including a funeral despite the timing (in-world) wasn't on their favour.
No more. You have to pack so much action in 20pages that a good page on reflecting on the loss your just got it... nope.
I'm following the X-Line through summaries but, did we get mutants truly mourn the Hellfire Massacre? I mean, we know that all the mutants of Krakoa are still alive (thanks-no-thanks to MR), but the mutants who didn't step through the gates ("the survivors") whose missions we followed through Fall of X (minus Immortal) believe that they are the last ones. Warren, Remy, Rogue... to them all those who are in Immortal are dead. I understand their situation is so dire that you don't even have the time to stop and cry, but... acknowledge that you lost all your friends and family? A moment? Some of these people survive through Mutant Massacre, or remember Genosha... there's should be PSTD, someone falling apart, someone "I can't this anymore". It would help us feel better their tragedy, IMHO.
Remember Days of Future Past? They were in a similar situation, there too the survivors didn't have time to spare to mourn, and they had seen so many deaths that they could be "dried up", but you still perceived that each new loss was new pain to bear.
I didn't feel any pain from anyone during Fall of X.
Edit: hoping you got better.
Can't wait to hear your thoughts about the Original X-Men one shot.