When there is so much at stake, business, public disorder etc. laws can and will be enacted to ease the flow of business, people and trade. We know this. Even if it meant the house of commons sitting until 3am night after night to get emergency laws through. Where there is a will, there is a way.
The fact that nobody is working on this, 9 months out from the 29th March is why I’ve become fairly convinced the efforts to date are mere tokenism, not necessarily pure incompetence, and nobody seriously expects to leave in a big bang next 29th March. The can is being kicked down the road until it is in any way palatable to hold a second vote, without a civil war occuring.
With so much involved, nobody is that feckless or incompetent on that sort of scale.