I put in a ticket to appeal the suspension as the GM didn't really have the power to do anything, will see what I get. The last part sounds promising in that they may have put a flag on your account that you're not a guy towing bots but a multiboxer and not to trigger that system.

I've now lost both a follower and a main in the middle of battlegrounds so I don't think it's simply being on follow that could trigger it... probably a bunch of conditions. Both times I was actually in the middle of combat. Both times (and my characters are fully geared) I was a high or top contributor in something (dps or healing) so I was definitely active. Be nice to get the special flag put on my account that I'm not a bot so it doesn't automatically happen on accident again.