This is likely what will happen. If the league continues to fail players like Burr because they have a (pardon the pun) burr up their butts, then that is inappropriate. They are failing to do their job and protect their employees. And perhaps one day it will come back to bite them....they seem to feel a sense of power that over rules all, but there are other options and it seems that professional athletes are looking at that.
Just as in any job place, those in charge must ensure workers' safety and allow them to do their job without risk (obviously, in a contact sport, to some degree...there will be a certain element of risk assumed).
However, if the head is off limits there should be no decision making process even available beyond "you did it". Not "well, he was angled this way and the guy leaned that way and the wind was blowing in a Southerly direction at 3 mph with a tint off someone's glasses affecting things". It then nullifies the whole process because it's allowing for some headshots. And some will be bad.
Anyhow, enough on this from me....won't change things but it's ridiculous that we are still even having these conversations. That, in itself, proves there are unresolved issues in this. What, 10 years or so of trying to figure it out? Who's at the helm here?...get some new captains on board steering the ship.