Ripping every single plug socket and outlet out in 80% of the living spaces in the EU is neither cheap nor popular, so "industry asking for it" will not be enough. Your comparison is a bad one.
The parent suggests that bureaucrats could simply change this unified charging port after a while. By that time there will be just as many USB-C ports as there are 230V outlets.
Most of Europe already has a standard 230V plug (https://en.wikipedia.org/wiki/Schuko). It would probably be easier to get a unified 230V power plug than to change the USB-C port again after a decade.
The life cycle of cell phones is a bit less than for buildings and nearly all of the electrical devices that plug into them - the primary exception being rechargable electronic devices. So changing the charging port standard is WAY different than changing the outlet standard.
