I will add, that I don’t think Z is in possession of any secret sauce here. Other than taking the step to provide some external method of shifting (via wireless remote to the trainer), presumably this concept could be applied to any of the typical smart trainers. From an optimistic standpoint, I would hope that Tacx, Wahoo, etc. will consider this concept and maybe offer backward compatible firmware updates and remote integration.
Even without the backward option, I hope this concept can land in those other makers because it has strong potential as a “new feature” that really expands the ease of use for trainer and the complexities of gearing.