Yes, the current flock of EV's are not 'Hot Rod' (AKA owner conducted performance modification) friendly
But neither are 98% of modern ICE cars.
In my eyes, the majority of grass roots hotrodding is putting a bigger/more powerful engine in a smaller car or something that rolled down the factory line with a smaller engine option.
In 1977 you could take a powertrain from a wrecked or rusted out mundane family cruiser (think 1968
Catalina) and drop the 455 into the engine bay of a factory I6 firebird.
Same with a 351W out of a big Mercury and drop it into a Mustang
Same with a 440 from an Imperial into a Dart.
Today trucks (Coyote F150's or LS Sierra's) fill those donor rolls. Lots of Coyote or LS's going into 2004 Mustangs, G bodies, or Nissan stuff.
But what does a modern Equinox, Rav4 or Audi SUV provide to the hotrodding community? Zilch. No transmissions, wheels, brakes, ect. And what platforms are there to swap? There are very few low cost RWD engine swap friendly platforms these days. Certainly you could take a turbo 2.7 from a Lincoln MKz sedan and put it in a NA 2.0 focus, but does anybody want to try to make a FWD work? EH.....?
I think the biggest issue today that will bite in the future is the lack of worthwhile donors and chassis that are worth a crap to swap. Pickup sales have gone up so V8 or large disp. turbo 6 options are plentiful today and will be for 15+ years, but what chassis are you going to use when all the fox chassis or G bodies run out? The only RWD chassis worth swapping will be 5th gen camaro's, S550 mustang, some nissan stuff, maybe a BRZ, but all low volume stuff that people generally care about. Is anyone going to want to coyote swap a subaru forester in 10 years? Doubt it.
Does EV's make it harder? Yeah, but the controls tech will catch up. Even so, buying an electric motor or battery through salvage from something like an electric bus or something might be an option in 10-15 years when they start getting scrapped, but what are you going to swap into? A chevy Bolt? A Dodge Journey? A Hyundai something? No, because none of those chassis are worth doing anything 'fun' with (drag racing, rally cross, autocross)
I rate EV disruption to hotrodding like a 5/10, it's there, and significant, but I rate EFI's introduction maybe a 4/10. the lack of worthwhile platforms is like 8/10. Govt. regulation is about the only thing that gets 9 or 10/10.