I completely agree with you that Proko's courses deserve more attention. I haven't completed a single course myself, but while working with the content, I still review individual chapters.
These are among the highest-quality courses ever made.
Currently, I am the one uploading the posts to OCC and GBC. The curriculum is also very well-chosen and structured. Furthermore, Proko's teaching staff is very strong, especially after what has happened with CGMA following their conflict with Domestika. As I understand it, many talented teachers will now migrate, including to Stas Prokopenko studio, since Proko has already established itself as a brand that has earned user trust through quality content, well-balanced delivery, and moderate prices.
they likely lack the level of interactivity found in CGMA, for example, but I believe our entire industry is shifting toward standard online formats and away from old-school technologies where an instructor communicates with students face-to-face. Everything is moving toward online and video-on-demand.