I'm guessing your use case is different. Solvespace doesn't need youtube for discoverability of these videos. These are not ad videos. They are tutorials. So why not host them on the same site as you host the software downloads?

Discoverability is good for advertising. It seems odd that people complain about ads on a service they use for advertising.

I mostly watch tutorials. Some of which I search for but many have been suggested and allowed me to discover new hobbies and interests or even just new channels on the same topic with good presenters.