Squids cannot be pushed around when on ground

In 21w11a, applies to non-Glow Squid only in my tests

I noticed this was marked as "Cannot reproduce" and sure enough I can't seem to get it to work anymore..? But just last week, in the same exact version, I tried and I could definitely see what OP was talking about. The squid would be sorta pushed but then bounced back, just like in the video attached. 

It may just be a rare side effect of the various existing squid related bugs, like desync, hitbox issues, and clipping through blocks and air.