My unpopular opinion? I worry Brandon is trying too hard to be woke.
Social justice themes in Stormlight Archive (with no claims of completeness):
Slavery and reparations.
Racial privilege.
Immigrant/refugee rights.
Upending the social/economic class structure.
Religion/atheism.
Undoing traditional gender roles.
Gender identity/fluidity.
Physical disability.
Mental illness. Major viewpoint characters demonstrate alcoholism, drug addiction, traumatic brain injury, autism spectrum disorder, major depression, post-traumatic stress disorder, dissociative identity disorder... you name it, someone has it. We even witness the birth of the support group on Roshar.
Don't get me wrong: as a proud progressive liberal myself, I'm LOVING it. However, I find myself wondering “is it too much?” Has Brandon taken it upon himself to write not only the towering fantasy series of our generation, but the most supremely WOKE fantasy series of all time? If the SJW slant stands out so starkly to me, might it be souring the experience of other readers? Might it even be alienating people who would otherwise be potential fans?
It sure won't stop ME from buying and reading books, though! ;-)