If your bot got globalled then you haven’t got your bot global protection right.
The “correct” thing to do here is to chunk the channel in sub mode and spread the clean up between the mods.
Of course such a spam bot should be reported. But when you get “hit” like that there is little you can do. Even the big bots like nightbot, xanbot and moobot are not whitelisted.
The whisper thing is just because Twitch are working on a new spam filter to find these bots and it’s catching tooooo many false positives, because, well, the bots look like bots