There was a thread about what I would have liked to see, but it's now locked. Let me answer that here.
Honest communication, true signs of repentance. Within a week of charges being dropped, Mason should have held a presser in United colors to offer whatever explanation legally possible. Apologize to the family. Apologize to his team. To his club. To his manager. To the fans. He should have told us if he loved his new family, and how he'd never let any harm befall them anymore. He should have said that he's offering 80% of the wages he's collected while suspended to a DV charity. He should have been vulnerable in measures he's taking to be better - the therapy he's receiving, the social good he wishes to do. And that he'll continue to do that for the remainder of his contract. United should have then released a statement stating that despite MG's presser, they would conduct an internal investigation. That as folks raising him since he was a child, they take responsibility for his mistakes, and will conduct an internal review and overhaul of the cultural systems in place so this can never happen again. They should apologize to the family, to the players, to the fans.
A week later, they could have released somewhat similar statements they did now - that they couldn't find any evidence to hold him guilty. He should have been on the tour, with the team. Training separately. Coming on for 5 minutes, repeat. After every game he should have stayed with the fans, taking the abuse, but apologizing. A shirt that says sorry. Hands put together in repentance. Just persist, show us how much you wish you hadn't hurt your family and everyone else. Put in the minutes, the grunt work to earn your spot back. Once the season began, he should do the rounds every game, take the abuse. And stay back again after every game to apologize. If he can win his wife over, make a public appearance with her - let people know she has chosen to forgive him, that the most important person in this situation truly thinks he deserves a second chance. Continue donating your wages, continue putting in the social work, continue trying to be sincere in your apology.
None of this may work, and he may not be able to make it. But at least we'd have appreciated him trying to show repentance. And the club for allowing him to do so. Not this shit show with DVs being flagged as hostile, and ambiguous statements as damage control.