Nope, that is minor portion of my traffic, nearly all of it is Sling with a bit of Netflix. Turns out high quality streaming video being left on 24/7 on multiple screens burns a ton of bandwidth :P
It seems wasteful to just leave on something streaming, just because you can.
Bandwidth is ephemeral, if you don't use it now, its not as though it will pile up and be usable later. With Fiber, there is no good reason to moderate usage, I'd be more concerned with the few watts the endpoint burns (which costs sub-$10 a year) than an extra TB of usage.
I have this on occasions. Action Cam footage which I backup to the cloud. If you use 4k it is a lot :)