Fake Trap protects many key cards, including Robbin' Goblin, which is more powerful than normal considering the monster line up
Add to this, all new Pokemon-ex, new versatile deck building strategies, new powers, and a whole lot more
A big key to the Angel's success or failure is whether it can win fights against its most natural enemies, which leaves it coming up a little short these days due to a wealth of 4/4s both on the ground and in the air but in an era full of bears few combats were a problem
The more important reason Gaddock was contained was that green wasn't a natural fit for the decks that wanted Gaddock, or in some cases green was but white wasn't, and his legendary status made it difficult to go too far out of the way to get him
With no weakness, resistance against Fighting-type Pokemon, and a free retreat cost, its not the worst