That's correct. The TV game was already scheduled so they didn't want to lose the money coming into the game from the broadcasters and nor did they want a 'big' club to go out of the competition so early. A decision was therefore taken to make it look as though a sanction had been imposed, despite they fact nobody could cite a precedent or explain the justification for a two-point deduction.
Jim McInally summed it up well:
https://www.eveningexpress.co.uk/fp/...-unlisted-sub/
The fact the yams went on to benefit from a big Murrayfield crowd in their semi-final gubbing by Celtic sticks in the craw.