I think a lot of the F-150s failure comes down to dealers. You can read myriad stories in the EV subreddits of dealers putting "market adjustments" on the Lightning and Mach-E of tens of thousands of dollars. It was if they didn't want them to sell, and I think we all know why (lower revenue from regular maintenance like oil changes and other fluids).
I have a buddy that has worked for corporate auto companies for 20 years. In most cities, dealerships make little to no money on the initial sale as competition has driven them down to dealer pricing. They make all their money on add ons (undercoating, paint protection), financing kick backs, warranties, and ongoing maintenance (this being the largest chunk). So there's probably a lot of truth to what you are saying.