You’re right, it was asked before and I did not answer, that slipped off my radar (as many other questions, now that I see them while reading the whole thread).
We will pay further attention in the future to questions such as that: I gave it for granted that TC would be part of MyVolumio plans, now I realize that for some that was not clear.
For the future, you can expect us to always follow our policy: if it requires a substantial investment and its not already part of free offer, we will make them available for MyVolumio people.