There is something fundamental in what you are saying here - and it explains a lot IMO about the way some of the Remainers are unable to get over it.
I don't think that you have been on these threads throughout the 3 years or so - apologies if I have that wrong. If you had been you would have witnessed the cycle that a good number of the Remainers have gone through.
Following the initial period of grievance and anger the Remainers moved on into a long period of increasing confidence and eventually gloating that it was only a matter of time before Brexit was cancelled. There were no doubts - only weeks becoming months of increasing levels of hubris.
In the wider UK this was also evident - the likes of Soubry, Grieve, Benn and others were just enjoying their time in the limelight and milking it. Who could blame them - the incompetence of May and Robbins seemed to ensure that they had no reason to have any concerns. It was just a question of time and they - including Bluemoon's versions of Grieve and Soubry - could just luxuriate in holding court and pontificating.
Then - all of a sudden - against all odds and expectation - something comes along that shows a route out from under their cast iron certainty and over-bearing confidence.
And then - fuck - it has all accelerated and has since gone to hell in a hand-cart....
Corbyn and his team were so utterly fucking certain that they had it all under control and it was just a question of how and when they press the buttons......
They and their equivalents on Bluemoon are just - understandably - stumbling around in a daze and well, frankly - seriously butt-hurt