I think this would be a good idea. At the very least, people would be given a second chance, once in possession of detailed facts, to decide once and for all. From the Government's perspective, it could then, legitimately, claim to have done everything in its power to consult as widely as possible as both the public, and Parliament, would have had a final say.
Of course, the likes of John Redwood would be jumping up and down claiming foul, but not really, because you are simply using their own argument against them, that the people should decide. If people once again vote for Brexit, so be it; if they don't - well, such is life. At least it would be based on more than the shambolic debate last time around (from both sides).
The caveat to this is that, as Howard says, a fudge needs to be found that we can carry out without crashing out with no deal. I am sure that the EU will soon find a way to make that happen
