The Buddy Store is a place where developers are allowed to make and sell plugins for Honorbuddy. HB has ZERO to do with these individual plugins, they simply allow a marketplace where they can be sold.
Arena support was NEVER, NEVER, NEVER, NOT ONCE supported. It worked, merely, as a loophole. Other developers, NOT HB, took the opportunity to develop content that EXPLOITED THAT LOOPHOLE. HB did not enforce things by disabling Arena support on their end. That is not the same thing as supporting it.
Now they have, and they are being decent enough not to remove every single bot function that people are crying about. BGBuddy is just as big a source of heat as questing, gathering, and archaeology. I CONSTANTLY find my toon stuck at a particular point with Kick's, surrounded by other obvious bots, doing the exact same thing. If you don't think people are reporting players for that, then you are daft. I would venture to say that there are people using HB that report others for it to be spiteful and certainly with Gathering to remove competition from their path.
The biggest motivator in this game is greed. That being said, the gathering bots are going to paint the most fervent targets on our backs.
The fact that there are SO many BGBuddy bots is probably our biggest security. They can't possibly report them all.