There's no actual logical connection between the two things.
I've always wanted to learn how to ride a motorcycle. I would enjoy not having to shift. Accordingly I may choose an electric motorcycle over a traditional one. And none of that has anything to do with whether I'll be a safe driver or not.
Logically it's absolutely no different than a driver preferring an automatic car vs a manual transmission car. It doesn't mean the person is going to drive faster.
So, basically, if you are afraid of bikes because they have shifters, but otherwise willing to learn, give it a try. I guarantee you that you'll feel comfortable shifting the gears on a bike and starting with the clutch on the first day. However, if you just don't want to learn because it looks like too much work, please, stay away from bikes, electric or otherwise.
I also think the whole transportation industry is going to have to get over crashworthyness and move on to autonomous automatic crash avoidance. High speed trains are not crashworthy compared to traditional passenger trains. Efficient personal vehicles should not need to be crashworthy.