We've seen this same play from another perspective I think, and you have to wonder what the coaches did in weekly team film review.
Did they walk on eggshells and not share these f*cked up plays with the team? Did they gloss them over with a pat "make better decisions, team" statement or worse, say nothing? The correct action should have been to lay into and demote Smith if it continued, I don't care who the backup was.
The fact that teammates are "shocked" Smith was released tells me they routinely hid all Jaylon f*ck ups in reviews, because after seeing these week after week his release should be a surprise to no one in the org.