It has always been that way. If you have a non EU IR and are not resident in the EU then the member state will validate your IR for the duration of your stay but if you are resident they will not. I am not sure residency is defined so I guess residency would take its every day meaning rather than the more complex meaning established through tax case law and legislation.
I suspect that there will be little change in the EU's position on non EU IR holders and the most dreadful fudge on the so called "simplified" IR for EU residents.
Unfortunately despite claims to the contrary the reps we have on the committee have very little understanding of the issues and even less understanding of the importance of ensuring UK pilots are able to excercise some sort of instrument priviliges without having to jump endless hurdles for hurdles sake. Ho, hum.