Yes and no.

Yes, and what's more, the UK haven't had free speech for a long time now. This last few days were just "them" flexing, but it's been happening for quite a while now.

No, because the 1st amendment, although enshrined in law, is just as safe as any other dependent on the WILDLY different interpretation of every judge. Case in point, the trump lawfare cases.

Justice is whatever the people in power feel is in their best interests at that moment. You can't trust writings on a piece of paper.