I mean, a person’s senses aren’t supposed to be infallible, but I see no utility in elevating baseless conjecture above them. The “brain in a vat” problem is fun and all but it’s based on zero positive evidence, just a lack of negative evidence. On the other hand the senses are giving us continuous and reproducible and interactible information about the world around us, which despite its inherent subjectivity can be communicated with other people’s perspectives to approach and approximate an objective understanding of things.
Now when you start shifting from abstract to concrete epistemology, things like symbols and language games and power structures and ideology become important facets to examine. What filters and tensions are influencing a person’s perspective? What mechanisms might be elevating or silencing their perspective socially?
We can and should be skeptical of our senses, but in a productive or dialectical manner, testing them against reality and other perspectives in efforts to approach a more concrete understanding.