Over a year ago people got the same attitude when they predicted there would be vaccine passports at all
I don't understand what you are talking about, OP. Are you talking about England here?
England doesn't have vaccine passports. Sajid Javid explicitly said they aren't comming in (as he has done many times). It's the very first thing he says in the interview on the link you provided. That tweet you linked to is a lie.
The only thing I can think you mean is that you can get the electronic NHS proof of vaccination if you need it for (for example) travel abroad or because a company requires it for a service. That's no different from using your paper record, it's not a vaccine passport.