I'd argue that having good online (i.e. that you can play an FPS online nearly flawless) is less of an option for much more people than it is finding someone to play local multiplayer with.
And your point? Who is talking about removing local multiplayer? Did I not say Couch Coop is the best coop? All my friends are in Illinois and I live in fucking PHX. If it wasn't for my brother I'd have noone to play local multiplayer with. Many people cannot take advantage of local multiplayer options, they have no value for them. Online multiplayer does.