Valda's Spire - Only 6 Subclasses, not 150?

Can anyone confirm that Valda's Spire come with only 6 subclasses? It is supposed to have 150+ new subclasses.
Did Beyond only implement 6, and the rest you just have the text for and have to homebrew or pen and paper?

So we dont even get the full book with the purchase? literally just the text for those 6 subclasses only?

They need to add back where you could see what was inside the book and you could individually buy classes, spells, and everything else. Rather than buying a whole campaign i dont want, i would love to own the subclasses etc.