Exactly! Best to find something that doesn't even want flour.I do that when I make hubby's lemon meringue pie. Or pumpkin pie. I have found a GF crust in the store that he "doesn't hate." But he said it kind of ruined the pie experience for him, so I won't buy it again.
I do like the gluten free Graham crackers ground up and put into a sawdust pie. Tastes as good as the gluten-full version.