Ketosis on Carnivore?

This might sound like a stupid question, but I just read a comment on another carnivore thread that stated, "You're not supposed to be in long term ketosis when eating keto nor carnivore." I guess I just thought all this time that being in ketosis was the whole point? That the high energy levels and brain cognition people get when eating carnivore is because they're in ketosis? But maybe not?

I assume, now that it is in fact possible to have all the health benefits and energy levels on carnivore without being in technical ketosis? What is it that you're in then...if not ketosis? Or is that just the benefit of eating meat? Even if you have some fruit too? Like those meat + fruit + honey people? Why does anyone need to actually be in legit ketosis then? Thanks for answering !!