It's unfortunate for the smaller creators, many of whom depend on monetization for their livelyhood. Soren has stated that this has basically cost him his rent money (not that he'll be homeless, just a reference as to how much its costing him). He started another channel to start re-monetizing and it hit him on that new channel almost immediately (within days). LER was then hit shortly after, and now there's a flood of repair-related channels getting hit with this. I'm not fully bought into the conspiracy theory, but Soren is thinking it's an anti-repair movement either directly by Google, or a concerted effort by a 3rd party to sabotage repair channels. The latter seems more believable to me than a Google conspiracy. He just mentioned trying to rename his remaining surviving (so far) channel to remove any notion of "repair" from the channel name in case it's a targeted thing and see how long it stays monetized.
Basically the creator is responsible for the bot traffic, even if they have no knowledge of it. So if I want to take down a channel for whatever reason (competition, politics, personal vendetta,...)? Point a bot network at the channel. Or DIY my own bots if I have the skills or resources to do so.
YT's position on this so far has been extremely cold. They're defending their "analysis" of each channel but it makes no sense, and is coming to a head I think. At some point YT can't exist without the creators so it will begin to hurt their business model. I think they need to take this issue more seriously and give creators a bit more benefit of the doubt. At least give the creators an opportunity to respond to such a finding before taking action -- I'd say most guilty parties aren't going to make a big case of getting caught, because they know they're guilty and can just create a new channel and try again. These creators that have spent YEARS building a big following know not to risk it by cheating, so at least hear them out.