To sell a class story on the cartel market, they'd have to develop it first and they seem to be doubting it will recoup it's expenses.
The - for EA - safer option would be to use a system similar to kickstarter. If enough people pledge enough money, more class stories get developed. If not, it's the communities fault
. Main risk, a failed 'kickstarter' would fuel the 'game is in decline' propaganda.