The fact that there is an "Evil Four" in this video implies that there is a "normal" Four in this timeline. IMO thee only time he/they were ever, quote unquote, "normal" was 15 years ago in XFOHV, and unless this video takes place back then, I seriously doubt that there's a "normal" Four. If we add the fact that all the other evil clones were picked up by their original, non-evil versions, when Evil Four was picked up by who I assume is supposed to be X, it's highly likely that there is no Non-Evil Four and he's just really really mad as heck.
Opinion Handled on Happy Tree Friends Fetch With Ruff Ruffman Caillou Ni Hao Kai Lan Trotro Pinky Dinky Doo Dinosaur Train and Handy Manny (Like + Childhood & Adore)