2 words , low sublevels.
you expect to get at least 2 pops in 5 weeks, not 1 in every 3. 6'6 is not 6'0, but it's not 7'1 either.
The training is definitely not profitable, but it's still the most fun for many.
Maybe BB think that people will just not train, then they'll balance it out. But people will just stop playing.
Cross training pop happens every other season, hooray!
Seeing nothing but stamina drops for 3 consecutive weeks is a bit disheartening, that's all.