Gettier’s influence is in the Gettier Problem, not the fact that he was or wasn’t a voluminous writer. That alone made him an extremely important and influentia

Gettier’s influence is in the Gettier Problem, not the fact that he was or wasn’t a voluminous writer. That alone made him an extremely important and influential epistemologist (and ensured a long academic career, in which he was also influential.) (FWIW, from my academic experience, the list is largely correct — Korsgaard and McDowell, for example.)