I'd like to think if Disney we're a little more hands on with their content, I doubt we'd get many vloggers doing what they do in the parks. It's crazy to think this, but if they released POV videos of ALL their attractions and I mean proper well-made ones, no one would bother watching anyone else's. Same if they released walk around videos, I'd love to watch a people free video of someone doing a full walk around of all the parks before guests enter, and one just after all the guests have left in the evening... The list goes on. But if these videos existed, there's not much point for other people to record them when the "official" thing exists. Would any of this happen? Very likely not.
I'm just trying to say. If Disney we're to release video's like this, there wouldn't be much point in people filming their own video when a far better quality video already exists.
I'd actually be elated if all mobile phone use was kept to an absolute minimum in the parks. Mainly because I feel like people don't seem to stop and "take it in" any more. It's all viewed through a mobile/tablet screen, which is a shame. I know people do it to capture memories, though. The more technology evolves, the more wearable tech becomes and people can just walk around capturing stuff without needing to whip out their phone to record something.