Far-Left protests pouring money into police resources... oh wait, that's not right.

While it is repeated over and over, that they are only refering to "Far-Right" groups, it is also stated outright (but quietly) that there is no real way to distinguish between "Far-Left" or "Far-Right" groups.

What is really happening, is police are being more militant at protests: as evidenced by British response to several protests, as well as their abuses in undercover operations.

This is simply another move to use the current political divisiveness to impose dangerous regulation.

[A] police and crime commissioner ... said a case could be made for banning certain groups from demonstrating

It's 1984 all over again.