Was a tremendous job of embellishment too. Really passed the eye test at full speed, but you can see the acting job in slow motion. In my opinion it's a skill, similar to players in the NBA who have greatly enhanced their career by manipulating optics to draw fouls (Harden, Embiid etc)
In this case it was a penalty by rule regardless, but it always helps to sell it. Wide receivers should also act like they will never be able to read or write again every time they take a shot while going for a catch. It puts the pressure on the refs to throw the flag or else it appears they aren't protecting the player