The Holy Ghost didn't inspire this bit. It's based first on the fallacy that the Catholic Church withheld the Bible from the people -- the Church not only preaches the Word, but provided vernacular translations well before Luther. Second, that "all believers" could make any more use of written scripture after the ref. than before, as the vast majority of people still couldn't read.
I could certainly argue that the RCC has indeed had the policy for two millennia of keeping the actual Bible from its laity--even the monk Luther was hard-pressed to gain access to it. But had the RCC's policy from, say, the third or fourth century been that "God's will is for every man to have access to the whole Bible in the vernacular," then two things would necessarily have followed: (1) the invention of the printing press a thousand years before it actually was, and (2) universal literacy-education.