What the article actually says is more like “we might be able to revive you if not too many if your cells have died, even if your heart and brain seem to have stopped.”
As long as your brain mass has not deteriorated you should still have access to at least your long term memory. But in theory it could range from a terrible hangover to amnesia and brain damage, and in that case recovery may take longer and you may end up being a completely different person, as it can already happen with some accidents.
I wasn't making any arguments for or against. For the record, I don't agree with the comic. I simply found it relevant based on it touching similar topics to what you wrote, and thought I would share. But, that's my bad for posting a link with zero explanation.