I live in Glasgow, and am aware of the significant over-subscription to this school.
OP, what is your suggested alternative? Neither you, nor GCC can change the fact that the current, fairly newly built school cannot indefinitely cope with the capacity challenges its facing. Yes, the council messed up, but that is in the past.
Are you suggesting that budget is taken from an already stretched Education dept to rebuild/extend the school?
Surely, the new proposal is a fair and equitable 'best fit' solution?
Anderson Primary is across a few more roads, all with suitable pedestrian crossing areas and crossing patrols too. It's just not in as affluent an area, and I imagine does not get quite as good an HMI report. I suspect therein lies the issue.
It's not great. It's not ideal, but I support that at least some changes are being made.