yeah well all games have redundant gameplay.... I mean you pretty much limited to do what you can do.... make sense.... even fallout has a redundant gameplay, you can't do more approach than your charter skills.... it's like card games you can only play by the rules doesn't mean that 2 games of texas holdem is the same but the gameplay is redundant....
now I'd agree on the branching.... then again some game are just not made for that.... you can't do that with most platformer, FPS also for a campain I can't see how you can make it so that you can play around attacking the final stage before the first one just because you want... that is way too much work would not make sens storywise and you'd need 5 blue rays just for all the possible cut scene that you can generate depending on your choices.... so yeah I'll say it all games are limited and linear to the extend of the development choices and logic of the game.... but in no way defines the quality of it..... how could it be.... I've seen games on rail being better than sandbox shooters
