(I've merged the two threads you made into one, just a heads up)
Also, (I might regret this later) but please do complain if you have a complaint. Just as long as people are civil, you are free to voice your opinion.
As for the Cup, I can't really say what the technical limitations are in general, just as a response of "Would <this format> be possible?" I assume there are few technical limitation, aside from maybe some extremely ambitious formats, but it's mostly a matter of balancing it in this case.
We already wrote what the reasoning for the new Cup format was, but if you still disagree with it, you can of course let us know and we'll take that into account when looking at the state of things at the end of the season.