You have much more confidence in that than I have. And I don't know what "has been in the works for a long time" adds to the argument. Various people have been talking about constitutional convention for various reasons for two hundred years but that doesn't make it a less risky proposition. In fact, the most common objection to this idea over the years has been the great risk involved of limiting the result once you let the genie out of the bottle.
Do some research.
/johnny