I'm not the official zoa police but,
FWIW/IMO PPE's are a particular color morph of a common polyp, Protopalythoa if I remember right.
I beleive that Blane Peron came up with the PPE name originally. There are inevitabally many different color morphs of Protopalythoa. I have some very bland looking Protopalythoa polyps that I'd be happy to sell for $20 a polyp (joke).
The PPE name became a big $ item once people saw them. (If I recall correctly, they became particularly hot with our club because there was a BRS group buy from Blane P at the height of the PPE craze)
There are two, more or less legitimate ways someone could call their livestock PPE's, either they are descendents of Blane Peron's original colony(s) or they look just like them and are Protopalythoa.
Obviously if Blane P got them from somewhere, there are more of the same out there somewhere also (thanks to Jovreef for pointing this out to me in the past). I would also assume that there are probabally other very similar but not exactly the same morphs out there too.
As for the polyps in the link, IMO they do at least resemble PPE's. If you feel you could trust the source you could probabally ask if they are descendents from Blane P's PPE's or if they are from another source but look (subjectively) the same.
If your not so sure you can trust the source then you really couldn't trust their word anyway. If they are (subjectively) the same, there is a lot of $ motivation to call them PPE's weather or not they are actually the same.
As far as ID'ing the pics I can't say as I don't have PPE's and don't claim to have spent any time studying them. I would also cite the well known fact that most if not all corals/polyps/exct can look very different in different systems and under different lighting.
I hope this babble on the PPE name is helpful and sorry I can't offer an opinion on the Pics.
Jov, where are you, this is a question for you?
