I totally disagree with that. I think New Avengers showed how they screwed up and things got worse almost excruciatingly. Each major mistake from Tony, Reed, T'Challa, and the rest of the Illuminati, escalated to the point where not even the heralded Avengers World could avoid the weight of it. And when things blew up, it was rough to see how just plain stubborn and vindictive Steve and the other Avengers got. How ugly and overall useless the feud got.
And then the capper that Tony knew the whole time it was going to go down a path like it did added to the tragedy. But I get if it wasn't your cup of tea.