Ah, yes... With highly improbable jammed between their toes...
In any case, I'm not sure how much Ellimist and Crayak actually had to do with Jake getting the Howler collective memory...
I think it was just something that they wrote in to make the story flow better, and I don't think that it should have been there... That's just my little opinion... *shrugs* So... Whatever...
But I do agree with the idea that Jake didn't morph the Howlers later because of the sentience thing...