The article puts the important part at the bottom.
> There are some minor protections built into Apple and Google’s current systems — you can display an encrypted ID without fully unlocking your phone, and various authorities can scan your ID wirelessly if they have special readers.
Don’t hand over your unlocked phone.
This is a valid concern, but there are other issues too, such as if the battery power runs out.
I've always been a little unclear on just how good "don't ever talk to a cop" is, for ordinary encounters like a traffic stop. I'm plenty leery of police but I don't particularly want to escalate a situation where I'm already at a massive disadvantage.
But yeah, it does seem like keeping your physical ID handy is a good idea. Handing over an unlocked phone seems like asking for trouble.
In my opinion, nobody with sane mind would want to escalate when dealing with the cops. But you cannot expect the same from the other side.
I used to be pretty neutral on the topics of LEOs until I saw all those videos where even if someone is crawling on the ground and bawling their eyes out begging the cop not to shoot them, the cops can still shoot them.
And the judge will side with the cops.
Nowadays I don't trust cops. If I have to interact with one, I will try to be calm but I will always assume anything and everything they do or say is to my detriment.
Given I've never had a criminal charge, take with a grain of salt. I've always been polite and engaging for all civil infractions (like speeding tickets), however, if I think they are moving towards a criminal charge, I'd invoke my 5th and would cooperate as required, but no further.