I agree.
Its not a good thing at all.
But there is an issue with the article you shared.
There's not sufficient evidence yet to suggest that any covid vaccine cureently available protects you against the strain it was designed for.
In addition to that, all vaccines that are currently out, do not stop you spreading the virus.
This is why, when you search, the articles and studies say "may protect" or "might protect".
But that still confirms the fact that covid passports are both useless and will greatly restrict our freedoms.
Because, if the vaccine doesn't work, then covid passports literally are of no use.
And, if the vaccines do work, then the points made in the article
@homeriscool shared also explain how covid passports are useless.
So, whichever way you look at it, we dont actually need them.