I think we would normally call that high beginner, but also see user title. It's a pretty nice piece of animation really. It flows nicely.
Now then.
Is it this hard to explain easing is not an important rule in a animation?
practicing blurs using pivot.
Yes. Yes it is. The only thing you have said is that it is unimportant. It's akin to small children yelling "You smell!" at each other.
That is not a good example for two reasons.
Firstly, that looks nowhere near as good as an eased animation. Even a chunk of heavy spacing like that needs anticipation and followthrough. If you feel it's necessary I'll bring up an example for you, but I think you're quite capable yourself of giving it two frames of anticipation, one and two pixels respectively, before bringing in the blur. Same out. It will look better because there will be some degree of realism there (and that's realism in the sense of what the real world looks like rather than the style).
Secondly, in a sense that animation
is eased. Adding a fade like that is a manner of tricking the eye into seeing twice as many frames as there actually are. It's as though you animated at 32fps and inserted the extra frames of easing between the existing frames with a blur. This is because when the eye watches an animation it is already just taking a picture of each frame and then letting that image fade as the next one appears. The brain cannot process the information that fast so it merges them causing the illusion of motion. With the ghost frame it seems as though the brain has just caught the tail end of the image because it was processing slowly and it assumes that the ghost must have been part of the movement so it adds it in retrospectively. What you have done is an advanced form of easing, certainly, but nevertheless still easing. Unfortunately for your example, one frame of easing is not enough and the anticipation and follow through mentioned above would still make it look better.
