or just does not make attempting to develop a "AAA" game any easier for indies?
Not that either, but that's closest. An AAA game is never "easy" for anybody, especially for indies.
Edit: it does make it "easier," so "not any easier" is incorrect. I'm saying an AAA game is still incredibly expensive and time-consuming to make, even with the best engine.
To be honest, i don't think the engines really makes making AAA games easier today than it was lets say 25 years go, the production values of AAA games have gone up dramatically and the fact that the necessary tech is reasonably cheap and easy to license today doesn't offset that.