In a way, I see the Mach-E as a Mustang spin-off, and because of that, I can't be too mad at it. If the Mach-E was slated to replace the Mustang like the case with the Eclipse, than yeah, I'd have some bones to pick with Ford. The Mach-E isn't replacing the Mustang, which was the case with the Eclipse Cross and the Eclipse.
I admit that I'm not too keen on the Mustang name being slapped on it, though I have to give Ford SOME credit.