The 3pm blackout.. why not schedule prem games to not clash with lower leagues?

To clarify, I’m not saying this rule should be removed, I’m actually in favour of it but what u don’t understand is if you are not allowed to broadcast on Saturday 3pm, why not just schedule your games accordingly. Look at Germany for example, none of their lower league games clash with Bundesliga. In this case I think the prem games should be rescheduled and it will be a win-win for everyone and the people who want to watch the games. Why can’t they do that?