Nah. It has a much more focused narrative, with all plots in some way connecting to Ned's exploits in King's Landing, and there is a natural and satisfying climax to that plot. All the consequence of adapting the strongest book in the series.
If I had to rank the seasons so far I'd say...
1. 1
2. 4
3. 6
4. 3
5. 2
6. 5
I understand the focused narrative, but the scene-by-scene pacing felt a little bit off to me in several episode - too many times, it felt like a scene was being dragged out longer than it needed to be which resulted in a lot of scenes that were actually pretty well written appear very plodding to me (especially common problem in Dany's scenes). Then there was the most blatant use of the sexposition out of any season. The newer seasons are much better at avoiding some of the pitfalls that plagued season 1. It is still a very good season (and I agree it got the best material to adapt) and I do like the tighter focus (though I must admit, I slightly prefer the sprawling nature the show currently has, especially on marathons), but it just felt less professional to me than some others.
If I had to rank the seasons so far, I'd go:
1. Season 6 (if it keeps up in the same manner in which it has been going. Far above the others if comparing the first 6 episodes.)
2. Season 4
3. Season 3
4. Season 1
5. Season 5
6. Season 2
Season 2 is definitely the weakest though. Two major storylines that hog up the spotlight were at their all-time worst here, and there was a string of episodes that were very mediocre. In fact, the only season 2 episodes that I find extremely compelling are 3, 6, 9, and 10, which are all definitely great. It really felt like they were struggling to adapt the show to a much more sprawling narrative this season, and became much better at it with Season 3.