Who's to say that Sammy or any one of the other first round receivers this past draft are "generational". The difference between Beckham and Watkins is that they try to get the ball in OBJ's hands as much and as often in all phases of the field. When Sammy has a decent few catches in a game and he starts to get focused on by the opposing defense or even a safety rolled to his side, it appears as though he moves further down the list of Orton's options. Sure, he isn't open on some plays but all it takes is just to target him and see what happens - which should be the case with any teams number one wide-out.
Now I'm not advocating a complete gunslinger as our QB but anyone who has the attitude that a player with that much talent needs to be getting the football regardless, be that Orton, Manuel or whoever we have as our starter next season.