First, I totally understand the frustration of coaches on this board. While 3 of my 4 teams are at higher levels, I do have one D3 team that I've become quite partial to, and don't want to lose the advanced functionality.
However, it wasn't always like this. When the Beta was rolled out, I was pretty ticked at the amount of effort to set up playbooks and formations. But, I was "hooked" on this game, and over time, I was able to build out my offensive and defensive system over the course of a few weeks that I'm not pretty comfortable with. But, it wasn't easy, and at least I had some game experience to draw from. The vast amount of new users simply are not going to put that amount of effort into the game, which is why retention of new coaches was low when 3.0 was launched.
Creating the basic version will allow new users to come into the game, and not be overwhelmed at the work that advanced requires. As they grow in their knowledge and desire to move up, they'll have a foundation and enjoyment for the game, where the increased work won't be such a burden.
The bottom line is we need new coaches to fill worlds. We all want that and the game is more fun as conferences expand with more humans. If WIS creates "basic worlds", we don't solve the problem of near-empty worlds, because new users won't choose the advanced worlds, nor would we want them to because they'll get fed up and leave.
Yes, it absolutely does stink what is happening to those D3 coaches who want to stay at their programs they built. But, we need change and we need an influx of new coaches to fill worlds and stay around. I'm not saying this is the answer to bringing growth to the game, but doing more of the same isn't either.
As Yoda said, "patience, Jedi".