You're right, but I'm not talking about having it write anything, I'm talking about using it as a research assistant to get you other sources you can use and maybe summarizing them for you as a way of telling you if they are useful to then read yourself.
Even if one were to use its writing (after editing), it should only be one source of many to avoid the exact problem you mention, sounding the same as everyone else. I remember in high school English Class, my teacher required us to have at least ten sources for every paper we wrote so that we wouldn't all sound the same.