I saw this yesterday while I was using the browser at work. At first I really thought nothing of it. It was was strange seeing it out of nowhere and I was indifferent about it. I love the browser and it has saved me time and my sanity by allowing be to block advertisements that infect us all and being reliable as a browser I can always count on to work how I want.
With that said, after reading the bug reports and comments a sense of indignation did wash over me. But only after reading the comments. I honestly forgot about it right after clicking the button.
I saw this too and wasn't too bothered, although I wondered if there was something I did on the page that somehow triggered the "we think you should know about our VPN thing" popup. Which IMO is also a bad thing - users don't know why you're showing them that thing at that particular moment.
The best place to show something like this is probably in an update splash screen. "Hey great news you're updated to v.next, you might want to know about our VPN thing too"
With that said, after reading the bug reports and comments a sense of indignation did wash over me. But only after reading the comments. I honestly forgot about it right after clicking the button.