I couldn’t agree with you more. It’s such an obvious omission.
I have tried that out and it works very similarly to Circle Intersect. But it suffers from the same problem of having to start with geometry (that may only be temporary) and forcing you to zoom in to find the cpoint.
I wonder whether there could be another answer to this. I appreciate why circles and arcs in SU cannot be true, but what about construction lines? Would it be possible to have circular construction lines and then have true intersections to click on? This has come up before, such as here. Also @DanRathbun wrote in another post that they have been requested from SU before.