Zwingly prayed the same thing and came to a radically different understanding of the sacraments within the first 5 years of worms. Luthers blindspot I think was that he believed that one could discern truth independant from the historical church, which, if you are up against corrupt Rome , seems justified. However, he probably didn't expect that thousands would start down this same path after the reformation and come to radically different conclusions than he did, with good intentions. Without a normative interpretational standard, you end up with what we have today. 50k denominations.

If we revisit Christ & the Centurion and John 1:1-5, the importance of the Word shines brighter all the time