Indeed. And if he had done that Luiz would have still been on the field then maybe Leno wouldn't had to come out of his area in the 2nd half with a full compliment of defenders backing him up.
watch it again, Leno was last man, Traore would have beat him all ends up as well as any defender - it was still a stupid thing to do but we wouldn't have been under that kind of pressure if we'd had 11 men on the pitch still