I concur with the OP. I don't like WotC's focus on using Dungeon Tiles in its adventures. I understand it. I don't like it.
1. I miss having a large-scale area map. I want to have a clear picture of how the various encounter areas fit together, and I want to be able to react when the PC's move off in an unexpected direction.
2. Dungeon Tiles sometimes make bad encounter maps. Consider the map of encounter 2 on page 16 of the adventure. Six enemies, five PC's and a 15x11 map with two big buildings on it. There isn't enough room for everybody to maneuver. In previous adventures, WotC's reliance on Dungeon Tiles has resulted in outdoor maps where the enemies are holed up in a structure on one edge of the map, leaving the PC's only one avenue of approach.
3. Because WotC has a relatively small number of tiles to use and reuse, its maps have started looking the same. This is much more a problem with interior maps, where (for example) the same 10' square pit shows up over and over again.
4. Use of tiles leads to ugly maps. Consider the map on page 8 of the adventure. Part of the forest is delineated with weird, unnaturally sharp lines, because that's how the tiles are printed.
5. This may be purely personal, but I don't like the blue-green stone color that WotC uses for most of its interior tiles.