It look likes one touch UI design becomes the trend of messaging app, though it may take some time to get used to it. Once having got used to it, it's dead simple! This Jiffies app is really good for sending short video to my close friends and friends who are oversea.
https://itunes.apple.com/us/app/jiffies-video-messaging/id936679328?l=zh&ls=1&mt=8
https://itunes.apple.com/us/app/jiffies-video-messaging/id936679328?l=zh&ls=1&mt=8