This isnt a valid complaint since there are many games that do this at startup and all GTA games do it. Of course Rockstar works hard to keep load times to near 0 once the game starts and thats where Just Cause wasnt up to snuff. But overall most load times were quick. It was just those one or two that everyone got hung up on.
It just boils down to the type of game you want and like to play. I can deal with some slow down and load times on a game that has lots of action, but

games like Sam and Max that have no excuse for any of that.