Maxred
You have a point, but I think there is a tendency to over complicate an IFR flight.
In the UK you have for a very long time been able to depart IFR without the need for any form of instrument rating. In the first instance (in the UK) the clearance said nothing about the weather conditions only the flight rules. Of course OCAS no one cared and in reality you could do much as you liked.
In reality the EIR doesnt change that concept all that much. Although you are flying in CAS in reality the lower levels of CAS are like a desert, no one is there and the airspace is empty.
Of course you have weather responsibilities for conducting the flight safely, but you are just as much a fool if you place yourself in conditions with which you or the aircraft cannot cope as you would be OCAS. I accept that OCAS you have more freedom to make up your own diversions but with an EIR you are able to cope with IMC and you should have a far better appreciation of weather. I doubt that because you have an IR this would significantly increase your appreciation.
So it is back to the age old argument of thinking that all the training that goes with an IR is necessary to enable pilots to do whatever they have done with an IMCr (now IRR) and which they appear to do with an extraordinary safety record.
Time will tell but I think we will find that enabling pilots to get above the weather will actually promote safety, not detract, and lest we forget for most GA pilots and aircraft, en route IFR is all about flying above the weather, not "banging" through it and if that is not possible leaving it to the commercial boys to put up with the bumps and shakes and waiting a day or two for the weather to be more conducive to GA flight.
In short more a practical observation about real life IFR for GA, which I suspect for most pilots is very different for commercial IFR ops - notwithstanding that whatever rules you make up the fool will still depart in weather beyond him or the aircraft and you are just as capable of killing yourself OCAS as CAS, in fact thinking about it more likely in the former.