The term postmodern epistemology is often used from a religious perspective to critique philosophies which don’t subscribe to the idea of a single universal Truth.
The return critique is that a belief in a single Truth is usually a result of willful blindness which ignores the complexity of reality in favor of the warm comfort of rote recitation.
And so it goes.
See Also
References
http://blog.solagratia.org/2005/12/08/postmodern-epistemology-i-modern-presursors-descartes/