From what I have personally seen so far, if you have 3 inhibs down, you are never able to leave base. Let's use an example.
It is 35 minutes into the game. Red side has taken every turret up to the inhibs, but no inhibs themselves. Blue side has taken every turret up to inhibs and all 3 inhibs. Both teams are relatively even in regards to gold and kills. Which side will have more map pressure? Blue, obviously, but by how much?
This is where the problem arises. By the time Red side has cleared all 6 super minions and their proceeding minions, the next wave has already arrived. Before, you could clear the wave and you'd have about 20-30 seconds maximum to look for something on the map (a teamfight, small objective, etc.), now you don't have that opportunity. You are forced to turtle to survive, and during that time, Blue side can take Elder/Baron or wait for the minions to stack so fast that they can run in the chaos to end the game. They have way more time to make decisions than Red does. Even with the even kills and gold, you still are at a massive disadvantage, more so than you should be even if they have all 3 inhibs.
If your team has gotten all 3 inhibs, you should be at an advantage over the enemy, you did the work and earned a reward. But the enemy should also be able to turn that around depending on how behind they are. If they are even with each other, that turn around should be much easier, but it isn't.
Just my thoughts. Take it as they are. <3
