Probably many people who are into Eastern spiritual woo would make that claim. Mostly, I expect such woo-folk would be confused about what “pointing to a concept” normally is and how it’s supposed to work: the fact that the internal concept of a dog consists of mostly nonlinguistic stuff does not mean that the word “dog” fails to point at it.
On my model, koans and the like are trying to encourage a particular type of realization or insight. I’m not sure whether the act of grokking an insight counts as a “concept”, but it can be hard to clearly describe an insight in a way that actually causes it? But that’s mostly deficiency in vocab plus the fact that you’re trying to explain a (particular instance of a) thing to someone who has never witnessed it.
On my model, koans and the like are trying to encourage a particular type of realization or insight. I’m not sure whether the act of grokking an insight counts as a “concept”, but it can be hard to clearly describe an insight in a way that actually causes it? But that’s mostly deficiency in vocab plus the fact that you’re trying to explain a (particular instance of a) thing to someone who has never witnessed it.