That's your fault, because you could've fixed the brightness on your TV (assuming you watched it on a TV).
Apparently most of America's fault, as that's been a common complaint in almost 100% of reviews of this episode. The cinematographer also attempted to blame all of us for it, but came off pretty whiny. Yes, I certainly COULD have adjusted the brightness of my TV to maximum to better see the action, but since my tv is actually properly calibrated, and I watched on a 60" TV in a dark room at night, I'm thinking I'm not the problem. Especially since the TV seems to be calibrated for every other show on it, plus all of the scenes from THIS episode that were better lit. In fact, I was rooting for more dragons/fire, because those were much more visible! Of course, if I'd adjusted the brightness to see the dark scenes a little better, the regular scenes would have been crappy and washed out, so I'm not pausing every 30 seconds to decide on a new brightness level. I could see the scenes that were lit properly just fine!
Also, i streamed the episode via DirecTV Now (not a great service, but it's free due to my cell phone plan, so not paying $15/mo to cable company for a channel I already get). Not sure how much the streaming services were compressing the signal, but was definitely blocky/blotchy on top of the lack of light. I've got Gigabit fiber through FIOS, so seems like my connection speed probably can't be blamed either.
They just made some poor decisions shooting this one. Most expensive episode (if I recall) that they've ever shot, and then they lit it so people couldn't see what they spent all that money on. And when called on it, got defensive and blamed the viewers. Yeah, no dice
