You are correct. If these people are well researched, they are aware of apps like 3Speak and DTube. Yet they do not post on them, for the most part (a few do).
This was the problem for so long with Steemit Inc, they did not use their own product. Crypto YouTubers do not use blockchain applications.
It is kind of hypocritical, is it not? To preach the idea yet not live by what you preach.
And im not saying they need to post exclusive content or move to these alternatives. Im saying that they dont give the alternatives the time of day.
I chalk it up to the platforms being small and if they started talking about Dtube or 3speak that use Steem which is considered a shitcoin by their donators and supporters they would lose their donations. Thats why i call them affectionately "whores".
They sell their integrity and their ideals for some donations and ad revenue.