I own a Provari and a couple of Infinitys... they are outstanding PVs... With cartos and off the shelf attys, I see a real need for the gizmos... to dial in that perfect vape where I have no control of the atty or carto...
But with a hybrid... fully mechanical, if I want hotter vape, I build the atty to go hotter with fewer turns of the coil... if I want it cooler... add a coil and it's done. If it fails to fire (hasn't happened yet, but I am certain it will happen some day)... just take it apart and clean it.
These are not for everybody, to be sure... but in PVs, I feel many of the electronics are there to work around other areas that are out of your control... With hybrids, many of these issues are in your control... thus obviating the need for electronics.
This having been said, I will eventually build a hybrid with variable voltage or wattage regulation... because I've never tried one, and the possibility remains that it could be an improvement that I have yet to experience.