That is how CCP sells it. Come play in our sandbox for free… oh, I see you don’t have a bucket or shovel. Do you want to buy them to keep up with the other kids? Players like myself just opt not to play in that area. The only option to take part, is to join and work with others. I suspect even 3 players could take out 1 multiboxer, since they have to mentally juggle tasks. The only way for the multiboxer to cheat co-op teams would be using bots or AI for their other ships.
Have fun!