[Illusion]

Granted, they won't be weak to bug types until later in the game when they evolve. Everyone is complaining that if those were the real types the starter Pokemon will have a huge disadvantage at the beginning of the game, but they fail to see the fact that
1.) Who's to say you will encounter any bug type Pokemon right at the beginning of the game?
2.) Your Pokemon won't be weak to bug until they EVOLVE. By the first evolution you should have 2-3 different Pokemon, so you are telling me that not one of those types are a flying type? A type of Pokemon most trainers catch at the start of their journey. -.-

I agree, I hope the Pokemon will have the secondary types. Being pure water/fire/grass would be boring. :/