There's yet another short film in your feed. You play it, and a few minutes later, you wonder why it ended in such a meaningless and abrupt way. Sound familiar?
This is what many short films look like to me. When I find one that's really well made and moving, I share it wholeheartedly. The truth is that there are so many shorts and there's no IMDB rating to judge if it's worth losing a few minutes of your fast-paced daily life. Here are the reasons I think many videos fail to be likable.
There are many inspiring filmmakers that show an example that many inexperienced video producers try to follow, but using a shortcut, not walking along the long-winding road. Video-recording devices and editing software are such a low-hanging fruit that anyone today can call themselves "a filmmaker." This results in a lot of mediocre video content, which is usually easily spotted from the first seconds. The other beginners are those who work the right way, and many times, their early attempts are all overwhelmed by the technical difficulties that frequently void their good intentions to tell an intriguing story. The proper way is to keep working on the craft, keeping your audience fairly limited.
Technically Savvy, but Nothing More
Those are the filmmakers who know how to make a short film look and sound good. They may produce films will great lighting, great VFX, great stunts, great audio, but still the film is not satisfactory to the viewer. Lots of those films are starting with an idea similar to "I like robots and explosions, and I'll make a film about that." And indeed, we watch a piece that's full of robots and explosions, but the more proper title would be "Robots and Explosions Demo Reel" instead of "Last Robot Standing" (sorry if I nailed a real film title; it's not intentional).
Most people watch films only to be told a story. We like stories. We are used to being read stories when we were children. We are used to listening to stories when we talk with friends. This is why just a raw technical brag won't fit the majority of viewers' expectations.
Maybe the Film Is Not for Me
Sometimes, you just don't get it. You might have a different cultural or social background than the expected movie audience, though most stories are universal in any language and culture.
Hollywood also makes bad movies: badly lit, badly shot, with bad stories. That doesn't mean you have an excuse to make a bad film though. If you want to entertain your viewers, tell them a nice story. There's nothing wrong with bragging about your technical skills or making a film with just a smartphone, but don't send those naked into the open. The story has to cover them just like a good lawyer covers your rear.