I have hundreds upon hundreds of hours logged using Cuppa bots and I have really tried to like this bot, having used it for maybe close to 10 hours, but it's incredibly painful to watch. Dying while standing on the wrong side of a jaguar, taking a complete detour when killing only Blue moon and Eclipse moon, deciding to turn around last-minute to drink a cuppa, sometimes even getting stuck in a loop between entering Eclipse room and drinking a cuppa, randomly running to the other side of a moon occasionally... in public instances and generally running around in open world, this all looks incredibly sus. High-end PC, no unnecessary plugins (GPU enabled), no direct input.
Thralls are on my todo list and have been for a while; They're just slightly complicated and my current account doesn't have thralls unlocked. But I'll try to bump them up on my list.
Re: Spec, it'll currently use your regular offhand while spec-ing if your spec and regular weapons are both 1 handed. I suppose what you're describing could be desirable if using a 1 handed spec (say DDS) but a 2 handed weapon (like a scythe) but honestly I think this is pretty uncommon? I'm just hesitant to add too much more bloat to the UI for a very niche & minor DPS increase in spec.