I’m not sure this government could have agreed amongst themselves two years ago any more than they can now, but you never know. Might have been a good tactic, but the EU has some of the very best trade negotiators in the World, whereas we turned up for the first meeting with David Davies and no notes but only a pencil: the EU was always likely to get the better of any deal.
In the end, the only real consistency in this from the U.K. side (apart from the civil servants) has been TMay herself. So, no surprise that we have been offered a deal that suits her - she was never comfortable as either a Remainer or a Leaver and so we’ve ended up with a softish Brexit, with a heavy focus on immigration, consisting with TMay’s home office track record. I’d guess this is as close to ‘the will of the people’ as we were going to get - immigration probably had a bigger influence on the Referendum than Brussels red tape, a European superstate or arcane arguments about the ECJ. My bet, still, is that, after the shouting and screaming, the U.K. will take what is on offer.