That said, I find these stories a little hard to credit, since you'd expect police officers in the EU to be fairly familiar with the standard EU driver's license layout.
Very little faith left.
I always find it funny when I drive by that and I see the sign MIT.
how long ago was this?
The common design for all the EEA countries was supposed to be implemented by the members by the start of 2013 according to Wikipedia.
Until 2033 there will be valid licenses that were issued before the common license, so there's still a lot of different designs out there.
Probably better to have a machine scan the identity document, not least because the machine can trivially avoid freaking out over "Nick Smith, born 2000-01-04" when the wanted criminal was actually "Mick Smith, born 2000-04-01".