Writing and doing science are separate skills. It limits what people can do if we require the same skills to exist in the same person. That doesn't mean we have

Writing and doing science are separate skills. It limits what people can do if we require the same skills to exist in the same person. That doesn't mean we have useless dolts but that we have people giving more of their time and mental effort to their specialty and capable people who were excluded because they couldn't write can have access to it.