I haven't had a chance to dig into the Busy code base yet, but what your saying make sense. I was surprised at how poorly documented the Steem code bases are, considering Steemit is a community building project. To Steem Inc's credit the do fund Busy so they obviously understand the need for alternative code bases.
Thanks for the tip re: SteemConnectv2. I'm playing with it now and looking through the SDK there is no post method. Ill check out how Busy do it.