The governments aim was to pull the trigger then cross their fingers.
Was it?
Totally serious question- why would you prefer that as a course of action as opposed to actually having a plan based on balancing the 4 freedoms?
I am increasingly of the belief that the best thing to do is leave, but retain access - soft Brexit - that covers the immediate aftermath, we leave (Leavers & Remainers appeased - not the extreme Leave or extreme Remain, but a compromise).
This then gives us time - as long as it may take - to unravel & unpick all the more difficult, intricate stuff.
Over a process of a few years we can then work toward a complete Brexit, without doing a headlong leap.
(Well, that's my most recent thought anyway - always subject to amendment!)