Obviously, you don't agree.
He's not the only one. I think if we did a poll for this, many more would disagree than agree.
It seems obvious that there's something not quite right about having a
life priest - someone who
worships and respects the natural life cycle - to use a
curse or abuse the secrets of life and undeath - to trample on said cycle of life and death. Besides, there is a long-standing tradition in fantasy genres - almost without exception - that necromancy and life magic are complete opposites.
Imagine a priest can make the dead come back for a little time with their full mind so they can explain the circumstances of their death or say goodbye to their families.
...A big
Maybe. But only in the form of a non-corporeal
ghost that would naturally dissipate after those goodbyes are said and done. Even then, technically, that would be considered a form of necromancy or death magic. (Read the
Wikipedia entry on necromancy for clarification on the term.)
...and its corpse now tries to kill every living thing.
Are you being serious?
A
life priest raising the dead, knowing full well that it would go on a rampage and start
killing everything in sight? That only makes sense if the life priest went completely insane.