There is so little service needed on an electric vehicle that a service department is almost unnecessary. Sure, I had to take my Tesla 115 miles to my closest service center, but in a dozen years of ownership of four Teslas, I've only been to the service department a couple times, and that was mainly with my first one. Seems they have most of the bugs worked out, as my last two have not needed anything, and now Tesla has opened a new Service Center only 40 miles from here, where they did some warranty work on my S once. Never had the 3 in.
If a car has a lot of problems it would seem that a wide service network would be good, and I'm guessing Ford needs their bigger network. They've never been all that good, as the saying goes, Fix Or Repair Daily. Ford was the reason we have a Model 3, as they wouldn't let Tesla use the name "Model E" so Teslas would line up as Models S, E, X, and Y. Pretty petty of them, in my opinion, but I've never owned a Ford, and won't.