Look at the stats provided to LE: there were a grand total of zero refused requests. Instead, all the requests were either approved (small minority), or ignored (all the rest). The requests were sent by email. Perhaps the users simply didn't see the emails. Most likely, they went into the Spam folder. Or the users are so inundated with other junk and other email (that makes it past the Spam filter) that they just didn't notice them. Maybe the users don't even look at their email very often.
Has Ring done any research to see if their emails are getting into their users' Spam folders?
Seriously, email these days isn't the greatest communication tool any more, thanks to the spammers. GMail does a pretty decent job of filtering, but not everyone uses it. Look how many clueless people still use their ISP's crappy email service!
As for the IRS, you're right about that: all the spam/robocall/scam calls have basically ruined voice calling on phones. I almost never answer my phone any more unless it's someone already in my contact list, because it's usually someone I don't want to talk to (and if it's from my own area code, it's almost always a scammer).