As far as I know it isn’t mentioned why the boss game got removed, but I think it is because a lot of people didn’t enjoy the maze and complained about it.REMOVED: Removed the maze bossgame.
it probably got removed for the reason you saidHi! ‘The maze‘ got removed at April 21 2020 when the ‘Majestic MinerWare Update!’ got announced:
As far as I know it isn’t mentioned why the boss game got removed, but I think it is because a lot of people didn’t enjoy the maze and complained about it.