The absolute peak of the Snowden story in the UK was when it was disclosed that some GCHQ "Spooks" took an angle grinder and baseball bat to some computers in the basement The Guardian headquarters. Mainly because it reminded them of some sort of comedy sketch. After that blew over and nobody cared anymore. That's why it's only tech publications like The Register seemingly carrying this more recent story.
The reaction in the UK was lacklustre, I believe, because privacy in the UK was already eroded a long time ago. For example you can't even walk 10 meters in London without being recorded on some CCTV system somewhere. Or drive more than a couple streets without your car's registration being recorded on police cameras.
I'm one of the few that actually 1) has an opinion 2) it happens to be contrary to the typical expected American view of "this violates a tiny amount of my privacy therefore let's burn it at the stake".
They should, though. And they will if the state decides to take the gloves off and use all of that illegitimate power against them.
We suffered massively from American foreign policies in recent decades and we continue to suffer from, in this case, "renegade" NSA agents that defect to Russia and upload all British secrets to the internet.