This. Your target audience is the determining factor. Though, you can do both: Put the gritty technical stuff in an article while the live demo and a talk goes into a video.

Personally I don't care for video and most videos people send me go unwatched. It's just not productive and I can scroll and skim text for interesting bits faster than skimming a video.

Most "technical" videos are simple tear downs for entertainment or a lengthy demo with a long winded how-to or technical overview. ZZZZzzzzzzz.