Now that you mention it, that's absolutely true. I suppose Touka now knows Kaneki can do something finally and isn't weak anymore, but on the other hand he's gone and she can only imagine what he might be able to do. Of course the cafe isn't a proponent of heavy action, but I reckon the ghouls have in their genes a desire to be strong. That might have been everything that was needed to push their relationship forward, as it hardly seemed to be going anywhere back when Kaneki was weak and Touka was verbally abusing him any chance she got. Poor Hinami, though. Kaneki might have been the most important of the people she had left.