I don't think you'll see a situation where minutes for a player can be virtually predetermined before a game starts.
I think the BBs do want to see an element of difficulty in training.
The problem is that the degree of difficulty right now is near to impossible. A starter is supposed to get ~35 minutes, though through a combination of a blowout and foul trouble he can get as little as 10. It is too big a swing for something which is completely random. There is also no way to correct for this, since it's the last game of the week.
The repercussions of having messy training is that it is harming people's ability to supply quality players on the market. If you train 2 positions, you probably want to retain 2 starters and 2 backups for your team. This means you really have 1 player to sell (or 2 if you choose to give them less than optimal training per week, which means they train slower). Will there be enough players circulating around in the long run? I am not completely sure.
I do think that training ties into the overall economic strategy of the BB team.
I'm not even going to begin to speculate as to what the long term strategy is, but I can assure you that everything the BB team does, however minute, is done with an eye on how it will affect the economy.
It's possible that the BBs want training this way to keep players from training to extremely high levels. I don't know, but if they do make a change, it will be for the long-term benefit of the economy.
NO ONE at this table ordered a rum & Coke
Charles: Penn has some good people
A CT? Really?
Any two will do
Any three for me
Any four will score
Any five are live