I'm reserving judgement on this until I see the costs involved for fans. United would be able to strip away middlemen like BT/SKY, the many PL clubs who receive more than they give, the FA and UEFA. They'd be able to distribute the games themselves globally and provide it at at much more reasonable cost while multiplying their income.
Football died years ago, I know plenty of people who won't pay Sky/BT subs on principle who might get back to watching United if the cost was reduced and they weren't subsiding the FA, UEFA and the hanger on PL clubs.