I don't like such "shortcuts" at all. When done correctly this even might be a good way to crystallize, but my experience tells me that most bees using this route will end up with an unstable dirty product. Same goes for that "add HCl to freebase and let evaporate" method. Bad chemistry IMHO.
What is wrong with gassing? Works every time. If your product doesn't crystallize then it's very impure and you obviously didn't do an A/B, in which case you deserve to end up with peanut butter anyway, for being too lazy to do this easy and highly efficient step.