I would much rather a news channel like TYT make lots of shorter concise videos than hour long ones. I don't want to have to go to time-codes just to find the only segment that I want to watch. I'd rather just find it in the video list, watch it, and not have to sit through other stuff that I'm not interested in/skip to part of the video.
Also a news channel like TYT, isn't designed for people to go there and watch every single video on the channel. It's like say a gaming channel, where you might not like some of the games you play, so you just watch the ones you enjoy. If the gaming channel only put out say 2 videos a week, and those were both a game you didn't like.. you might find yourself having to wait a week or two just for there to be content to watch. Lots of short videos coming out on different subjects == there's something for everyone.
The only time when really short videos bug me is where it's like one documentary and a channel splits it up into 5-10 minute clips. If it's a documentary designed to be watched in one session, then just make it one (or max two) clips. I like how say Vice actually does their documentaries: If a documentary contains segments about different things, they'll release it both as separate clips, and as a full version with it all together as one documentary.
The other time it bugs me is lets play/gaming videos that are split into less than 5 minute long segments. It just feels too short when you're watching something like a gaming video - unless it's like a montage or "funny moments" clip, I prefer 10 minutes+ per clip at least. SeaNanners used to do this on his channel and even though I always enjoyed his stuff it meant I often went to the channels of the other people he played with to watch from their perspective and see a longer video. Recently he switched to 10+ minute videos and his channel is so much more enjoyable as a result.