We saw with Horizon that it was mostly just an excuse for Silver Age wackiness and new costumes/gadgets, but most of the Horizon cast would never be...
I guess this would be the equivalent of Marvel's close to long decade of mediocrity in their cartoons (just compare X-Men '97 to Avengers Assemble)
...
The team knew he wasn't dead though? They saw him get taken into space by Lilandra. I guess they could be upset thinking he was living the high life...
"We come into this world alone and we leave the same way. The time we spent in between - time spent alive, sharing, learning together... is all that makes life worth living." - Jean Grey