Are you a solicitor ?
There was no start date for this new competition, for there to be any contravention you’d have to say “it was going to be played during this season of the PL so breaks our rules”. They can’t say that because a start date was never agreed. You can’t punish an organisation over a future hypothetical rule breach because you’ve no idea if the Prem would even still be in existence. The head of the thing was on record saying it would start once agreement was reached with the governing bodies.
Aside from this, there is case law which backs up the idea that such penalties in an attempt to discourage new competitions would be seen as anti competitive. The European courts have upheld challenges against other sporting organisations who have tried to prevent the start up of new competitions.