Thanks for the warning. To be honest, though, I struggle to see why this is any different than any other alternator with respect to the potential for damage to other systems. It's not common to cook modules when regular alternators fail, but then again, bearings don't usually fail catastrophically on other systems. Anything is possible, but I have had so many bad experiences with dealers. They are either flat out dishonest, or not knowledgeable enough to provide good information and try to cover by making themselves look smart to the general public. Neither one is not beneficial to us, the customer. Even more frustrating, there is no information available to support rebuild/repair of the mechanical portion of these units. $80 in bearings and a few hours labour and they could save themselves so much reputational damage. No vehicle is perfect, all will have problems. I buy used and keep mine for 400k km's so I expect to repair things. If you make information available so aftermarket can support it, local shops can do basic labour work, etc., and not have people forking out thousands of dollars and waiting weeks for backorder parts, that has to be an overall good thing, right? Proprietary modules and control systems are fine - I wouldn't buy aftermarket for anything I wanted to make sure worked properly anyway. But not providing a parts list or testing specs so an alternator shop could rebuild the basic components is mind boggling. Its 100 year old technology. It's not revolutionary.
I'm sorry you had to go to a Ford...

- just kidding. These things just have to work. That's the one non-negotiable!