Not sure that’s a fair conclusion. The CAA were dragging their feet regarding announcing what they would accept post Brexit, pretty much up to the wire! It’s fairly well accepted that the CAA didn’t want to leave EASA. Quite why we’re dragging ourselves out is anyone’s guess, purely politics I suppose.
I do hope common sense prevails, as you say. Hopefully an arrangement can be made to rejoin EASA (or at the very least get a BASA in place), regardless of our standing with the EU.