You have to have the ability to evaluate what can go wrong and when. A great example is on the way.
When the manufacturer notes that weight limit is 200 pounds, that means exactly that.
A 250 pounds person can stay on the deck and even give it a go. That doesn’t mean that if 250 pounds person stands on it will cause total destruction of an electric scooter at the moment and transform whole construction into ash.
No, it means that besides performance which is ruined, your braking system will be overburdened too.
You will want to stop at some moment, and if you catch some speed on the slope section, there would be a problem. Big problem.
Read what the manufacturer claims about weight limit and respect that.