It is my sincere hope that people (you) will figure out that at this point, what ports are used on machines evolved from Soviet Spectrum clones has essentially NO bearing on the ZX Spectrum Next.
In other words stop your pointless whining about how that ZX Spectrum Next does things differently from the way things have been done in in the former Soviet Union. Nobody wants to hear it.
Repeat after me: Different is not wrong. Different is not worse. Different is only different
This may sound a bit abrupt and closed minded, but 1) The time for changes in port addresses has passed, the manual is completed and being printed. 2) Your previous attitude and demeanor has completely wiped out any good will that you (personally) had with members of this forum.