I'm at +1 with rharv on this one.

A "teaching tool" is what I see them being used for. If PGMusic think there is sufficient demand for it to warrant putting mega resources toward it, then perhaps they know something that we don't, namely, that there is an existing or growing market for "video learning".

As for "not being requested by users", that may also have been true when they introduced "Real Drums" and "Real Tracks". We hadn't asked for them but PGMusic took a chance on them, and we (well, some of us) ended up fully embracing something that we didn't know we needed!!?!!

If they choose to continue adding to them for the 2019 version, I'd have to think they figure on the market being there, and they're not just "beating a dead horse".

My 2 cents CDN.
LLOYD S