To update the on the topic of Falang support, we have rechecked the case on the latest version of Falang, and we find that it mostly works as the previous version.
In theory, Falang should work transparently on any extension working on content. The definition of component elements is directly connected to the database (via System - FaLang Database Driver). However, in practice, the translation layer only works for certain use cases on the front-end site.
Since AutoTweet and Joocial work with content from the front-end or back-end side; Falang driver does not load in the backend at all and the content is not translated. Since this is a basic definition of how Falang works, we find no practical way to overcome this limitation.