The abuse concerning the sale of indulgences was by Johann Tetzel, not the pope. In any case, if Luther had just opposed abuse, he would probably be hailed as a saint today, just as many saints who did so. No, his main objections were with long established Church teachings, and not just abuse by the pope.
“The abuse concerning the sale of indulgences was by Johann Tetzel, not the pope. “
That’s like saying you didn’t buy an HP computer, you bought from an HP salesman.
Ya'll gonna give the money back?