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.
The companies should try making water resistant devices. But the repairability or ease of changing batteries should not be neglected. Maybe another model that is a bit further expensive, covering the cost of making it water tight, should be also sold?