The New Playlist Does What Dynamic Was Intended For, But Better
Both dynamic Q and the new playlist are geared tonwards keeping the more casual players interested in the game and they both seem to be succeeding at that, however, the new playlist doesn't compromise the competitive integrity of the game.
From my experience with these so far, my friends, who I consider casuals (meaning they played mostly normals before and don't really care too much about improving at the game), have played much more ranked than they did in the past because they were finally able to move up in the ranks (which some certainly should not have), BUT once the new playlist came out, not a single one of them played anything except that for the whole weekend.
Point is, new playlist > dynamic Q at pleasing the more casual players base (at least from my experience) without somewhat screwing over those who prefer the competitive side of the game. Solo Q please