I mean, it still is a can't.
Let's say Krakoa can only produce 10 resurrections/day, and there are 1 Million Mutants waiting. If the main X-men team die, now you have 1 Million and 6 Mutants waiting.
Regardless of the main character mutants being prioritized, it still is only 10 Mutants/day and still have a backlog of 9,999,994 mutants in queue.
If you add on humans and you are still capped at 10 resurrections/day, that is enough of a reason for can't, as there are now 1 million mutants + whatever number of humans in queue.