I'd really like to see the details of every product that has these issues. Full make and model, where it was bought etc. I realise this could be commercially damaging and unfair to the company making the product if user error like using a 48V charger with a 36V battery but feel the safety importance is paramount.
Also it should always be put into context of how many are sold. Typically premium high cost ebikes sell in very small numbers so statistically are far less likely to appear in such incidents so we don't want a situation where people pretend a high cost premium product is better giving a false bias to the marketplace. 50 fires in 50,000 is no better or worse than 1 fire in 1,000 with regard the safety of the product but people are going to assume the first product is more dangerous as it will be reported 50x as much as the other.
The average price of a bicycle sold in the UK including ebikes was £365 in September 2020. Halfords stated ebikes were 11% of all bikes sold but that was some time ago. Probably the Carrera range of ebikes are the most common ebikes sold in the UK by a huge margin. I'm not sure if there has been any Carrera ebike fires, I don't remember seeing any.
Also age of the ebike is very important.
Also lumping e-scooters with ebikes is not helpful. When the New York fire service showed the so called ebikes that had caught fire the majority were e-scooters.
Ultimately you are left none the wiser with such news reports. I tried to look at that image to identify the ebike but its very hard. I can see its a fat bike and has a large geared hub motor on the rear. It could be one of those US brands of a Chinese import or a direct Chinese import. I can't see it being a true 250W ebike with that large rear hub motor.
That's another thing if you buy a ebike restricted to 250W then find a way of un-restricting it on the display you have to ask the question was the battery sold with the ebike good enough to be un-restricted?