They did leave the following disclaimer on it so if DTG have a problem with them sharing the stream they can get it sorted out: "Disclaimer: The footage in this video fall under fair use and was created as promotional/educational material. Some of the footage of this products were gathered from multiple sources including, manufacturers, fellow creators, and various other sources. If you are the creator or owner of the footage and have reservations please notify us via YouTube comments or email. Copyright Issue: If you find any of your copyrighted material in this video, please leave a message so it can resolve the issue or contact via YouTube message. © All rights reserved by respective owners." I don't think its anything to worry about though, personally
Fair use is LESS than 15 seconds. Many copyright breachers use it to cover themselves in case of being sued which can be costly. The usual is just removal of an account and banned from youtube for life.....
There is no time limit on fair use. In any case I highly doubt DTG is concerned about others spreading their promotional materials...
While it is true there is no hard rule, the general rule (at least US law, which applies in YouTube's case) is "less than a substantial proportion of the entire work." Excerpts are OK, the whole enchilada is not.
The only real hard and fast rule is whether or not DTG want to bother striking it down or not. At the end of the day it's DTG's job to be finding and striking these videos if they actually care about them. I'd note many companies don't care when even large outlets repost trailers and other promotional content. Here's Nintendo's trailer for Super Mario Bros. Wonder. Here's IGN's repost of that same trailer, who I'd note are among the largest gaming websites in the world and have worked with Nintendo. And here's a repost from GameXplain, who's a Nintendo focused outlet that also regularly works with them. I could probably find many other reposts, but I think I got the point across. At the end of the day the law doesn't matter if the way it's enforced is completely different than what the law says. In theory pretty much any footage of any game could be struck down if a gaming company really wanted to unless it's a review, and even a bunch of those might not fall under fair use due to how much footage they use. Most gaming companies don't really care if footage of their game is out and about however, if anything it's free promotion. Also because it's became so widely accepted the few places that do use copyright takedowns usually get lambasted for doing so.
DTG don't run ads on their videos/streams from what I can tell so they aren't losing money on this and it is free publicity so I don't think they'll care particularly.
they might care because the sound quality is really poor so is showing the route and game in poor light.
Ah, fair use. Nobody who actually complies with fair use ever mentions it. If somebody mentions fair use it is because they have gone beyond what fair use actually allows. That’s usually the way you can tell if it isn’t indeed fair use.