Quote from BondoBasically, you were promised a delicious cupcake. You pictured and expected a lavish, multi-layer cake flocked with diamonds and gold. Then you received a delicious cupcake, and cried foul.
More accurately: I was promised a cupcake. I expected a cupcake. I got a muffin. Still good, but disappointing.
Basically, we've been waiting for this Adventure update since after 1.6. When I heard that it was being delayed to 1.8 so Mojang could make it better, I was happy. Then, they failed to deliver. The terrain gen isn't done, the adventure features aren't done, and it's buggy as all hell. Still not a bad update, but it's not what we were told we were getting.