The remaining fire risk/safety issues tend to be with dodgy cheap batteries used as replacements in ebikes and the like, and there are ways to mitigate even those risks (fireproof charging lockers, anyone?). Electric cars are much more heavily safety-tested, and I would say that at this point in their evolution they're no more likely to catch fire spontaneously than an ICE car.

Plus, some of those parking spaces are probably reserved for visitors, right? You think they're going to go out and rent an ICE car just to visit this place? There will be EVs on the premises anyway, as they gain market share in general.