Remember the chain of command. The minister decides what actually gets done.

And that minister is a member of the conservative party. You can already guess what gets done, right?

His plan:
1. The grocery chains must publish data. But only for a hand-picked list of basic products. Not the entire sortiment, like we do now.
2. Platform owners can be sanctioned/sued if they display the data the wrong way.

There's are only two up-sides in all of this.