Oh, sure, but 2007 is still well after strip #100 so all of Pathfinder would be out. That doesn't mean that anything appearing in Pathfinder is null and void, simply that we can't use the Pathfinder versions of anything as evidence for MitD.
I agree that Qlippoths as a category (along with Ancient Baatorians, if anyone ever finds one that's old enough and actually statted out) are a promising place to look for candidates in terms of general capabilities. However, if you're looking for a specific candidate, you can't use a Pathfinder version because all of the Pathfinder versions for everything came out years too late. The specific candidate has to come from somewhere else.
Pathfinder can be a good starting place to find candidates, and a Qlippoth candidate could work out well, but a Pathfinder Qlippoth just isn't viable. Similarly, I was excited to see all those nifty Pathfinder Haguenenmons, but proposing any of them is pointless unless we can find a older version.