I have read an article which has a very different vision of where our heroes were during events leading up to the destruction of Praxis in Star Trek VI: The Undiscovered Country. What do you think of this concept?

Perhaps this is where the characters were before Spock’s briefing at Starfleet Command? But these backstories were maybe cut out of the final movie as a result of both budgetary and time restraints?
Original article.
Hikaru Sulu would have been living in some crowded metropolis driving a cab. Doctor McCoy would've been found drunk in a space-age bar, while Uhura would be hosting a radio call-in show. Chekov would be a grand champion in chess, while Spock would be playing Polonius in an all-Vulcan production of Hamlet. Captain Kirk would've married Carol Marcus and settled down. Only Scotty would still be involved in Starfleet, teaching engineering to cadets. Various circumstances arose to bring them out of retirement for one last mission, with some drafts even featuring the deaths of all characters but McCoy and Spock.

Perhaps this is where the characters were before Spock’s briefing at Starfleet Command? But these backstories were maybe cut out of the final movie as a result of both budgetary and time restraints?

Original article.