I completely understand the Beta versioning and there being a potential for bugs. I wasn't trying to bash Castle for that, but reading my post you can see my frustration I guess which could be perceived that way. My main point in the post was to inform others that the issue exists.
Also, I'm not sure where you're seeing this as being communicated as a known issue. I may just be missing it on their site unless it's on a forum sommewhere else? If you know of the location, please share. EDIT: I followed the link you posted and see there was a response from them. Would be nice to have a link from their FAQ. I'll keep a watch there for any updates thanks.
The other lead in to my frustration here is the requirement for the external BEC. I too needed this with the Ballistic motor and my Servo. Maybe it's my hobbyshop I should be directing this to if they are truly known issues and they didn't inform me I'd need to buy additional parts for it to work.
Disclaimer - I'm new to the sport so maybe my assumption for these things to work as they claim is misguided.