That is not the only option. Summon other players. But you understand the contradiction of what you're saying, correct?
>[goes on to write a paragraph that could be used as the definition of gatekeeping]
I think you should rethink what gatekeeping actually is, because I'm not sure you know it. I'm not gatekeeping you out of Grave of the Fireflies if you tell me you don't want to watch a sad movie and I suggest against it. It would be gatekeeping if I said 'if you beat the game with summons you didn't actually beat Dark Souls', and it's not something I would say.