I think I have almost the opposite reaction. I've been having the same problem with TGS And TOM that I had with Mistborn. I really liked the Mistborn premise but I simply couldn't make myself care about any of the characters, when people died I thought "meh" and kept reading which is not what you want in a book. I now find myself feeling to some degree the same way about his WOT books. While there are still scenes that moved me they all fell a little flat, the only reason I had any emotional investment in them at all is down to the long standing relationship I have with the characters involved through years of reading and re-reading WOT. You could say I was moved in spite of Brandon's writing, not because of it.