25mph is where lethality starts to go up, but that doesn’t mean things going 24mph harmlessly bounce off of pedestrians (good news, you’re not dead. Bad news, you can’t work for long enough to go bankrupt). This still weighs a lot more than a cyclist does and it’s reasonable to say that there should be a safety bar to reduce serious injuries even if that’s a lot lower than a vehicle which can go 100mph.

That’s not professional level I’d say most cyclists can sprint at 25+

But only briefly, because they'd have to sprint, so I'm ignoring that part.

If you think 25mph is safe, try smashing your face against a tree at 25mph. Or run as fast as you can face first into a brick wall. I bet you can't run 25mph.

Why run? I've hit a brick wall going downhill on a bike. It hurts like hell, but it just hurt like hell. 25 mph is not enough to even guarantee a serious injury (even though it can lead to that, and yeah, in freak accidents can even kill you). However, this vehicles absolute top speed is 25 mph, unloaded. That's why I called out the top speed. It's not going to go 25 mph 99.99% of the time, it'll be going 10 or 15.

If it rolls at that speed, and the poorly QA'ed roof crumples in you could definitely end up with serious injuries or even die.

Yeah, but the odds of the thing ever actually going top speed are basically zero. Even with a load in the back it's never in a million years reaching that speed.

25mph is plenty fast for a car accident.

Or a bike accident. Yeah it's going to hurt, you might even break some things, but for it to be any more than that would be the definition of a freak accident.