The OP is being highly disingenuous as usual.
The article says nothing about people being locked in their cars, that being said for the last 30 years or so most cars have had "deadlocks" where the interior handles will not work if the car is locked from the outside.
The article basically says that with a massive increase in electric cars, fire services have now introduced a training course to teach firefighters how to tackle electric car fires with the expectation that as more electric cars are used there is also likely to be an increase in the number of fires.
It also says
In 2022-23
fire services across England recorded more than 19,000 vehicle fires in total, of which 11,252 started accidentally.
When the BBC asked every fire service in the UK how many EV fires they had dealt with in the past three years, none could provide a reliable answer because they do not distinguish them from other types of vehicle fires.
Instead, some fire services, such as those in Norfolk, Essex, Surrey, Derbyshire and Kent, ran text searches for any reference to the word "electric" in their vehicle fire records.
The results of those text searches show there were 59 electric vehicle fire references in 2022-23 across England - up from 30 the previous year.
So 11k accidental car fires in 2022-2023, yet when looking into the numbers combined Norfolk, Essex, Derbyshire and Kent could only find 59 electric car fires for the same period I get that this is not the whole country as per the 11k figure, but I don't think that the number across the whole country would probably break 500 electric car fires, versus 11K in total that were not deliberately started.
Bearing in mind all of the above, there is just as much likelihood of burning to death in an ICE car as there is an electric car, but the likelihood of burning to death in ICE car goes is massively more likely if you don't own or drive an electric car.
Lets face it any car now is highly sophisticated and full of electronics, what ever sparks a fire in an electric car is equally likely to spark a fire in a Petrol car. Batteries can catch fire while charging, cars catch fire while refueling.
Batteries can catch fire while discharging as you drive, petrol can catch fire leaking out of a poorly maintained fuel pipe and leaking onto a hot exhaust.
As the Green Vanper pointed out, this is typical media BS to make a mountain out of a molehill.
in this case fire fighters start a new training course to tackle electric car fires now there are many more of them on the roads, we'll spin it as "fire fighters expect an increase in electric car fires" with no context.