Most of the "artifacts" are just the original source being completely choppy at that point. We are used to the slide-show of 24 FPS and we think it's "normal". While SVP will expose those gaps easily (without special filters like 2m I guess), it's still nothing that bad, considering the alternative is the choppy slide-show of the original source.
PS. e.g. hero jumps from ground to ladder, you may see an "ugly artifact" on SVP, but in reality on the original source you see nothing at all between the jump and the ladder!1 So, while some people badmouth interpolation as ugly, they often ommit to mention that their "perfect" original source has absolutely no data to show between those two points. So one could make the easy decision that "I'm AWARE of those gaps now, it doesn't mean they didn't exist before".