As I understood it, costly parts, parts availability and lack of maintenance expertise did it in. In short, it was complex and expensive to take care of. When the PFM was orphaned by Porsche, that was the nail in the coffin. The only aircraft to use the PFM was a blimp, lol.
We watvhed YW fly by my parents house either this or the summer before, I remember telling my dad that this must be a Porsche Mooney, solely by the sound of it, although I was sure, there wouldn’t be a single one left. Calling a PFM Mooney underpowered, like one other commenter did is pure BS by the way.
