It really is of course, but I can honestly see them resort to this only to be able to offer a competitive edge because when it all comes around, this stuff is what many use VPN for rather than privacy. As streaming sites keep clamping down on VPN providers, the low hanging fruits of dodging via mere national IP addresses are blacklisted by them and these providers need to go even further to fool them and compete.

But yes, it's also sketchy with the other implications and all, and not the least what kind of traffic that people want to hide that you're unknowingly a proxy to!