You're probably "righter" that I am; as per usual!

But it would seem to me that since they've got the opportunity to affect the systems via software; they'd do so.
Since they'd have no control over an "ESSEM" bike's shifting; it might not have been worth the effort for them to do so...
("If we can't control the whole package; the heck with it!" thinking)
But that's just my notably in-expert line of thinking...