Good thing they removed the VFR only limitation. Why force somebodywho is instrument rated to fly less safely then he/she could? Again this is about third party risk mitigation, if my house gets hit by a crashing aircraft the weather conditions matter little... and also, there is nothing medically more demanding about IFR flight than VFR flight (which is why they have the same medical requirements in FAA-land) so there would be no rationale to exclude it whatsoever.
Looks like I got the weight limit wrong, though, 6000lbs/2.7 tonnes rules out quite a bit more than I thought. Probably appropriate, though, so a Meridian, Baron or somesuch is fine, but a TBM700 etc is ruled out (althoug flying a meridian below 14,000 ft is a bit limiting)