Didn't know it was an attack.
Harmonically, Herbie wouldn't exist without Evans. OP had nothing to offer in that area.
well the herbie hancock website states:
Beginnings: Early Life and the Miles Davis Quintet
Born in Chicago in 1940, Herbie was a child piano prodigy who performed a Mozart piano concerto with the Chicago Symphony Orchestra at the tender age of 11. He began playing jazz in high school, initially influenced by Oscar Peterson and Bill Evans.
Herbie's webpage
FWIW i think evans was a genius - but just because herbie cites him as an influence doesn't mean that he sounds anything like him.
and using your line of reasoning uncle chuck - if there wasn't an art tatum there wouldn't be an evans!!!!