It's been over 24 hours now with people fighting for the tower and going there to PK and check out the new changes (so it's way more active than usual), and it still seems like the tower is pretty stable with mostly two guilds controlling it.
So from a towering perspective, anyone claiming it's ruined is judging it based on how braindead easy it was before vs. its difficulty in comparison to other towers. I haven't towered there yet, but I've run around as a saint and observed and it seems like everything is just fine. Guilds seem to be controlling it when they have enough people on and losing it to large and coordinated attacks, which is generally how towering should go IMO.
Also, it's kind of arguable that the new spawn point is entirely a nerf anyway. It puts you farther away from the flag, but closer to the halls (which is the main choke point at Sardon's).