I think the opposite, this is all for both 'sides' public consumption, they will do a deal in the next 6 days. The deal was done years ago, seriously any 2 UK citizens and 2 EU citizens could knock this together in a weekend, and still get a beer in.
Can either side afford to ignore the other - NO
Can either side win - NO
Make a deal. 60M people buy a lot of BMW's and Brie.
No politician wants to be left holding this baby, business plus Joe Public would wipe them out, and I dont just mean in the UK - hans gets fired from BMW, he's not voting moderate next time is he.