All of that is actually discussed within the article. I've updated the article with an excellent video, valid also for cycling, talking about the necessity of infrastructure here:
https://www.youtube.com/watch?v=UL9J30PAkTM&t=448s
As you said, we need more regulation, including on batteries. You are completely right on that.
But as they banned all e-scooters from TfL because one took fire in Parsons green (with nobody injured), why don't they ban all electric cars because the battery of a Tesla burst in flame recently? The title had the word "paranoid" meaning "
condition marked by a pattern of distrust and suspicion with a loss of reality".
We have a decade of experience worldwide, millions of users around the globe, billions of kilometers of e-bikes and e-scooters usage. How much more do we need to decide what is the proper regulation? Funny enough, even usual followers such as Gibraltar of the Isle of Man are losing patience and decided to regulate and authorise them without waiting for the UK.