It had been in the works for a while, but now it has formally been adopted. From the article:
The regulation provides that by 2027 portable batteries incorporated into appliances should be removable and replaceable by the end-user, leaving sufficient time for operators to adapt the design of their products to this requirement.
Sure, it doesn’t happen often. Those mechanisms are often just some software running in some microcontroller, which can also fail and manifactorers like to cheapen out where possible.
It did happen to me maybe 2 times in >5 years, where not even long pressing power button helps. I was traveling by rail the last time and luckly had my ticket physically.