On a quick read, sounds like we actually could roll it back (Brexit?) if they wanted. Bosman thing was like 97 was it? then this must have been a reaction slowly brought in to try to mitigate that

Why was it introduced?
Windows were introduced as part of a compromise agreement with the European Commission about how the whole transfer system worked and how it could best preserve contractual stability for both the player and the club while allowing movement at prescribed times during the year - the summer and winter transfer windows in effect.

The alternative was to bring football in line with most other industries where contracts were not enforceable or liable for appropriate compensation, i.e. notice periods being served and players moving at will. The football authorities across Europe felt this would fatally undermine the footballing economy and remove the incentive for clubs to invest in developing players.

That wasnt it at all...there was a campaign joke that if we all bought more doughnuts we'd be able to afford jack grealish ..It wasnt taking the piss it was going along with it

was it last years reveal?

You cant even buy them anymore either.