Yeah that’s not right.
Peacock have a licence to show games in the US and that’s it. Anyone in the UK using the Peacock stream (or any other stream) is doing so illegally.
Not saying that is correct or that anyone will do anything about it though.
It is a breach of copyright. The premier league logo is copyrighted (not the game itself I think) and viewing that without a licence, outside of the jurisdiction where the broadcast is authorised, is a offence.
My issue is what the police are doing getting involved as I think (stand to be...