From the last test, the main issue seemed to be that the point was hard to push onto - partly due to it being enclosed, partly due to easily-accessible high ground outside the point which could see all attacking routes. This update hopefully fixes that by removing easy access to high ground from the point (except for jumping classes), and opening the middle building up, especially giving a good attacking view of the point from the stairs on the left flank.
Removed ramps to side balconies in mid building, replaced them with lower routes
Significantly increased height of mid building doors
Replaced flat-roofed buildings outside mid with rocks which are harder to get on
Replaced ramp/platform on left flank with larger curved staircase to give attackers a better high-ground option on that flank
Hopefully these changes will still allow a team which controls the point to push beyond it slightly, but not such that it's the best defensive option. I'm considering adding a new route if this version doesn't fix the issues/breaks the map in a new way