The more I think about it the more I wonder whether we need a more clearly defined separation between private and commercial pilots? The training world (beyond the PPL) is controlled by relatively few commercial operators who doubtless exercise considerable influence throughout Europe. They clearly have vested interests and the last thing they want is a "simpler" IR. However the number of private pilots they tutor is miniscule. We all know how few private pilots in Europe have an EASA IR. They would not be bothered to loose the few private pilots that past through the system each year
We accept a PRIVATE pilots license and we dont restrict how a pilot with a PPL shall operate - VFR into the largest hubs is entirely acceptable. Flying IFR is no more difficult with the correct tuition, and it seems logical that an IR attached to a PRIVATE license should be a PRIVATE IR. With that distinction it would enable the rating to be far better designed around the needs of the private pilot without compromising safety.
It is not on the road map, and its not going to happen, but fun to muse.