I understand your discussion going on about money and training etc. and it's good to know the side effects of any new change to the game.
The reason I proposed this idea is that this new cup model would bring more competition among the new users and give them a chance to reap some benefits (but significantly smaller than that of the current national cup). I believe (if I'm not mistaken) the current cup rounds are generated at random and that always involves new managers playing against veterans and having an "impossible" cup match at round 1. This pulls motivation down for the rest of the season for the newbies and I can say that from my experience a while back.
Perhaps this new cup model could have a positive effect in keeping new managers longer as they see their team winning matches in the consolation cup? This issue is also been discussed extensively for quite some.