I don't disagree with you but you could make the same point about the full IR.
Both of them enhance the ability to fly under VFR
The only difference between the IMCR and the IR is the big increment in the hassle, cost, hassle, cost, ongoing hassle, ongoing cost, in getting the IR and keeping it
In fact I would argue that you need an "instrument capability" to fly VFR to anywhere near the license privileges e.g.
- at night
- in haze
- in difficult lighting conditions
- in a lack of a horizon
- when there are no visual nav references
- anytime you don't want to bust airspace
