There's not really any good reason a pickup truck needs to have a ridiculous top speed unless you plan to spend some time at the track. However, in order to prove to the masses that electric vehicles are highly capable, top speed is arguably important, and it's much more impressive when it's demonstrated with a pickup truck rather than a sports car.
When people talk about electric vehicles, they tend to focus on instant torque and/or quick off-the-line acceleration. EVs accelerate immediately and seamlessly, there's no engine prep or internal combustion or spooling or really anything that needs to take place for an EV to launch instantly.
