Because you need to watch the videos to learn that you have to sync the tracks. And because it is hard to understand that while there is a mute button only selected tracks will play at all (at least when you hit the play button of the VST).

Perhaps many users would found it natural to make tracks not to play when the DAW play rather the other way round as it is now.

But hey, tastes differ widely and each has his own workflow.

Masi

Band-in-a-Box, BiaB-plugin, Reaper, Win10 64bit, i7-8565U, 24GB RAM (always latest versions)