I mean... You're not really an antihero if you're attacking a religious compound and killing a bunch of its defenders because you didn't get your bike back... for a day. It's not like any harm came to Hermes, and she didn't exactly try to negotiate, or just steal him back - she decided that five or more lives were worth ending because they wouldn't give him back 'right away'. That's obviously a villain, not an antihero.
(Also, it's 'like shooting up jonestown' - you do realize that the worst thing about Jonestown was that the followers got killed, right? Shooting them isn't exactly the solution)