This new (and therefore spoiler-filled) strip of The Order of the Stick makes the claim that Implosion has been used to prevent resurrection, presumably from the party's Wizard's access to Limited Wish. This got me thinking, what means of resurrection does Implosion actually prevent?
Implosion does not prevent any form of resurrection. Instead, its niche is that it circumvents death ward by lacking the death descriptor. Although it slays its target, it is not a death spell.
It might be more of the fact that the body has so little left to resurrect that it's easy to hide/remove the rest of the body. It may also just be a misinterpretation on the part of the author. 1210 strips in could make it easy to forget such details specially since the author doesn't play dnd that much any more according to some old interview/blog post.