In a strange way, he has a point.
It was corruption in the Catholic church Luther was noticing.
yes but hes attempting to link what hes doing now’to that, and that is wrong.
He threw out a huge part of the OT that had been recognized as inspired Scripture since before Christ was born and overturned at least a dozen dogmas and doctrines the Church had taught and held since the first century after Christ.
He wanted to start the Church of Luther where Christ adapted to him rather than him adapting to Christ and that's exactly what he did.
Luther deciding things the Bible says are sins are no longer sins isn't a case of Luther recognizing corruption, it's a case of institutionalizing the corruptions he preferred to the ones he saw.
He was about more than abuses like selling indulgences, but wanted the Church to adopt heresies, including wanting to rewrite and throw books out of the Bible to support his “faith alone” theology.