To me if it looks like a Shashka and cuts like a Shashka, then it must and should be called a Shashka.
Why "pseudo"?!
Them maybe we should call all Indian Khanjars "Pseudo-Khanjars" because Khanjar is a Persian word and the Indian Khanjars are somehow diferent from the Persian ones?!
Or shall we call all Indian Shamshirs "Pseudo-Shamshirs" simply because Shamshir is a Persian word and weapon?!