I don’t disagree on that level, in fact, Hendrix played Sgt Pepper two days before it was even released, with Macca in the audience.
But if you asked the average person who the “King of Rock” was in 1967, most would have answered “The Beatles”.
But yes, Hendrix has had more of a long-term impact on music, because he was so far ahead of his time.
I didn't mean to indicate that Hendrix was crowned King upon his arrival on the scene. But, over the next four years of his life, his incredibly ground-breaking output solidified that position in most rock listener's minds.
It was very evident at the time of his passing. There just was no one else in the pantheon of rock greats that held a higher level of respect (and even reverence) at that time.