I understand what you're saying.
Now I'll speak from my perspective as a new user.
I think it's due to the GrowFX community. In the 3D world, many focus on providing tutorials on how to achieve the perfect render, PBR materials, and assume that you buy vegetation from places like Maxtree, Globe Plants, or Evermotion. They assume that if you buy the GrowFX file, all you get are infinite variations, and that's it. Therefore, those same people who use it daily end up not sharing their GrowFX knowledge and concentrate on other software like V-Ray, Corona, etc., and you see so many videos that repeat the same thing. There are so many details to show in GrowFX, and the community itself is the one that's really neglecting it.
I wasn't referring to Exlevel itself creating tutorials for the software. I meant that the community itself is very secretive about its GrowFX knowledge.
But I'll continue learning from the manual and using creativity to solve the dilemmas. Thanks to the forum and to having people like you who support newcomers.