I wasn't using 'aesthetic' in a scientific sense, but in a Bloomean sense, where aesthetic value is an undefined experience of pleasure that comes from reading literature. Your final comments are similar, if less confrontational, than Bloom:
"Pragmatically, aesthetic value can be recognized or experienced, but it cannot be conveyed to those who are incapable of grasping its sensations and perceptions. To quarrel on its behalf is always a blunder."
http://www.mrbauld.com/elegy1.html
This is one of his harsher statements! I don't think he means to imply that failure to recognize Dickens means total failure as an aesthete :) Elsewhere he hints that if you are incapable of grasping one author, you may still grasp others. And he worries that he can't grasp Larkin when most other critics admire him. I guess we all have our blank spots.