Kuithe stepped on Robinson’s foot as both were creating contact at the break in the route. His next step with that foot is taken gingerly.
You can see this in the rewind and brief pause in the video.
There was no horse collar or anything like unto it going on (despite the 2003 Nokia phone footage as someone put it) that pig bus posted on X. Criddle’s video clearly shows that is not the case.
Those two things are facts.
Whether there was a taunt, is not something that can be backed up with facts but could be speculated.
Whether the tussle was normal receiver/DB contact I guess is up for debate, but a quick review of any 10 receiver/DB interactions during any game would quickly convince any reasonable person that the contact was normal.