Well, that's understandable. Someone trains to sell and make money, but someone has to buy and give seller a money. Game balances itself this way.
However, I guess that all of us want to have as good players as possible within their team, especially in the era, when lacks of high-class players force managers to train and enhance their pool. Therefore, the BB policy to encourage player development is probably a good way.
Also, don't forget that some kinds of training actually doesn't need a lot of effort, and may allow you to develop youngsters without sacrificing competitive games. Scrimmages are actually a free training slot (or 2, if you decide to train RB/1v1), so even the biggest enemy of training may use them to get some kind of advantage by spending few minutes every week.
Leniwy, stary, wyliniały kocur. Czasem jeszcze zerknie na polskie tłumaczenia.