Absolutely. Now, even if we talk straight up fatalities of all causes, you would think it would be completely lopsided against ICE buses. But given the likely disparity in miles traveled between them...it might not be as lopsided as one would think.
Not just the numbers, but the shorter range of the vehicles as well would make it perhaps not so lopsided.
I read where Canada has, or will have, short hop electric prop airplanes!
A few years ago, certification of the big new Boeing fly-by-wire airliner was delayed by an onboard battery fire...or perhaps it was an overheating event prior to combusting. I forget the model number...