I think it’s detrimental because “direct” there prevents people from accepting weak forms of illusionism, and that creates problems additional to The Hard Problem like Mary or Chalmer’s conceivability of qualia’s structure. And because… I don’t want to say “the assumption is wrong” because knowledge is arbitrary high-level concept, but you can formulate a theory of knowledge where it doesn’t hold and that theory is better.
I think it’s detrimental because “direct” there prevents people from accepting weak forms of illusionism, and that creates problems additional to The Hard Problem like Mary or Chalmer’s conceivability of qualia’s structure. And because… I don’t want to say “the assumption is wrong” because knowledge is arbitrary high-level concept, but you can formulate a theory of knowledge where it doesn’t hold and that theory is better.