Hussar
Legend
This is, for me, the most fundamental difference between 4e and 5e. 4e is based on the encounter, and hence supports a scene-framing approach. Whereas 5e is based on "the day", and therefore - it seems to me - favours pre-plotting and GM control over encounter sequences.
There are other differences - eg 5e doesn't have skill challenges or DCs-by-level; and 4e combat seems to me to make positioning more important and interesting than 5e combat - but the pacing aspect I think is the most fundamental.
I'd say that's fair.
Although, the "DC's by level" really aren't, in practice, terribly different than "limited DC's with limited bonuses". By and large, the end result is the same - about a 66% success rate is expected for most skill checks.
And, yup, the removal of encounter powers tends to reduce the impact of positioning, plus the fact that encounters rarely last as long as 4e encounters - at a gut guess I'd say 5e encounters end up around 4 rounds (give or take) while 4e generally take about twice that. 5e is a much, much faster paced game.
Add to that the removal of the "reaction" actions, many of which were encounter level, where you had a bajillion triggered actions in a given round, plus the removal of most "effect conditions" and you do have a significantly simplified combat system.
However, those tend to be pretty specific things. At a somewhat higher altitude, I find that both games frequently play out similarly. There are a few things I miss though. I think that 5e could seriously benefit from a Page 42 mechanic. Then again, I think pretty much all games could benefit from that.
