First, credit where credit's due - ANet, your change to T3 Gates/Walls is definitely an improvement, making SMC more accessible and opening up other T3 objectives to be viable options to attack. But SMC has never been as easy to break into as it should, and here's two reasons why:
1) The Advantage of Holding SMC
Holding SMC provides your team with lots of advantages. For a team that already has an advantage in numbers or coverage, SMC is the objective that really allows a team to pull ahead and reduces matchup parity. SMC provides a sizable PPT bonus, large swathe of territory for supply or zerg movement, hard to counter treb access to 5 or so towers, and 1000-1800 supply sitting in the middle of the map. There are lots of reasons to attack SMC, making it (in an ideal world) a HOTLY contested objective. But due to SMC's current design, players are decentivized to attack SMC, and advantage is tipped HEAVILY in favor of the defenders.
For our fight lovers out there, nobody talks about that three-way zerg fight we all crave happening outside SMC's inner gates. No, we enjoy it INSIDE the Lord's Room - so why not have SMC's design favor breaking inside? As the center of the Eternal Battlegrounds, SMC should be the centerpoint of the struggle of the three opposing factions - not the thing we run around on our way to backcap paper towers.
Ideas About How To Make SMC Easier to Break Into:
Those are my thoughts. I'd appreciate some feedback, feel free to critique. Have a good day!
~ Bad Axxe