I didn't even know there was a DMG 2 for 4e. At any rate I was not trying to start an edition war thread, merely communicate my feeling that over the years there has been a drift away from looking outside the character sheet for solutions to problems. It didn't start in 4e, and it won't end in 5e.
My question is: Should looking outside the character sheet for solutions be encouraged in 5e?
As previous posters have pointed out, it was encouraged in 4ed more than in any previous edition. And I think that trend should continue.
The idea that old editions supported creativity is a classical case of survivor bias: Only a small percentage of people that started playing with old editions are still playing them. And typically they are still playing them because they managed to coax a lot out of the old system. But they make the mistake to ascribe the fun they have to the system rather than to their own mastery.