Bear in mind this was a response to TFS VAs voicing the same characters they did in TFS. This is a big no-no. For example, they could have Chris Sabat voice a random character in DBZA, but they can't have Chris Sabat voice Vegeta in DBZA (even briefly). It's part of the rules.
TFS was very clear that while they're not done with DBZA post-Cell saga, they're very busy and making Cell saga was so grueling for them that they don't intend on making the Buu saga any time soon. Most likely it won't start until next year (though they debated whether to quit entirely, before deciding to just wait for more time). They're not technically stringing anyone along, they've been public about what their intentions are. It's just that a big chunk of their audience doesn't bother to read or watch anything they make that isn't DBZA, HUA, or FF7MA.