I'm told all I need about the feasibility of their deadline given the fact EVs still aren't in widespread use in the roles they make the most sense and have the best bang for the buck such as public transit, school buses, trash trucks, etc. Those uses have the highest gain for the lowest cost, their use schedules are generally amenable to EVs, and they are the easiest to implement from an infrastructure perspective given their centralized storage and service locations.
I'd actually really like to see EVs in these roles.