Would be disappointed if there was a move to withdraw the Scottish Amateur Championship. Marketing could have told you that the weekend of the Tourney coincides with the local "Glasgow Fair" Holiday, a possible reason for the unfilled capacity.
The other reason could be the the Gala is not the best of venues, the Alea would have been more suitable.
The Alea was a major disappointment when they were used for an event I was involved with before. Great facility, huge improvements required in hosting large scale third party tournaments
No idea what "Glasgow Fair" is. Neither did the venue suggest the date would be an issue
Was that the SPT ? I played in that, thought the venue was good, better than the Gala.
The "Glasgow Fair" is a local holiday, two weeks, and this year it is the last two weeks in July.
It was the traditional window for large Industries,Shipbuilding. etc, to close for the summer break. or Annual Leave as it is called these days.