You don’t need a Blizzard employee to disprove this. You just need common sense.
Why would this system exist when the only time it’s apparently ever observed is when players conspire to falsely report other players. The system has never been shown to work on a bot despite thousands of people reporting bots every day. We have no anecdotal claims of someone witnessing a bot being automatically banned from their report. No videos, no streams, nothing.
If players could ban bots by simply getting together and reporting them, we’d have seen it by now. There would be Discord communities set up for this purpose. How many times have you heard players ask to be made volunteer GMs? They’d do it for free. Well, if an automatic banning system exists, that means we each have a percentage of a ban every time we report someone. The volunteer GM system would already exist, except there’s millions of us.
Streamers would be making content out of banning bot trains. Stockades Mage bots in P2 of SoD? You bet there would have been streamers getting their fanboys out there to ban them. Never happens, only ever happens to innocent players. Yep, totally believable. No one has ever tried to mass report a bot in a decade.
Players, even groups of players, cannot ban each other. We’d have competing bots going out and you’d see bot report wars. There would be dozens of them reporting each other and you’d be seeing them disappear right in front of you.