I questioned whether MLK Jr believed what he wrote to get a grade, I did not suggest our faith must not include basic truths.
I asked for and did not get the paragraph of his letter that reaffirmed Christ's "God consciousness."
I think suggesting MLK lied about his beliefs to get a good grade is a bit off. MLK simply did not seem like that kind of person.
MLK still leaned on equating Christ's divinity to a God-consciousness when he wrote:
Isn't this like condemning Jesus because His unique God-consciousness and never-ceasing devotion to His will precipitated the evil act of crucifixion?
Today we would call MLK's pulpit sermons "double-speak".
You say MLK held orthodox views by affirming Christ' deity. BUT MLK already explained this was a "God consciousness " and not to be taken literal.
You say MLK affirmed the empty grave. BUT MLK already explained that by empty grave and resurrection he meant Christ's philosophy, this "God consciousness", did not die with Jesus but lived on.
I am not aware of MLK ever renouncing his stated beliefs, or him disagreeing with other liberal ministers from Crozer.
I will say Proctor tried to help him reconcile Christianity with the liberal form taught at Crozer.
Reading MLK's later papers (Boston University) it is clear he has some views that are unorthodox (a finite God, salvation by works- justification by faith, eternal life based on merit and usefulness to God). BUT there are also things I agree with (his atonement view, for example).
So his beliefs could have changed. But there is no evidence I can find that they did change.