Is Warp Stabilzer wrong?

What amazes me is when it fails stabilizing simple scenes, just how much it fails.

The slightest movement in the background of the scene such as a hand, and suddenly warp stabilizer becomes bad.

Are developers using AI for warp stabilzer? could that be an issue?

What is worse is when you play around with the warp stabilizer setting, and suddenly the playback fails and you get a black screen.
What is just as bad is when you deleted the effect, and playback fails!
Why does the frame rate drop and playback fail when you get rid of WS?

Do any of the settings even mean anything? Having tried the other settings it just makes the video worse. What is the actual point of them when everyone uses the same thing (such as position + stabilize video, for example)

“Synthesize edges” NEEEEEEEEEDS to be reworked. Like what? 
Why is it that when you add WS for a simple panning shot with some shakiness, it warp the background or anything behind the subject?

When it fails, it fails hard, especially on the most simplest of scenes.

Please improve Warp Stabilizer. Considering how much Adobe charges, there should be zero issues at this point.

[abuse removed by moderator]