brok3n butterfly wrote...
Why can't the sub female roles have their own endings?
Simple, because they don't have the budget and episode numbers for that. As much as I like the omnibus episodes like Amagami and Yosuga no Sora, The shorter their episodes the faster the pace gets and many details are omitted.
They "can" focus on the main heroine, but that means rage reactions from the fans who actually likes the other heroines, but then the plot becomes convoluted trying to mix all the heroines in the anime, creating more rage for the series. In the end it's a "Damned if you do, Damned if you don't" circle.
But this only applies to VN based anime, where the sub heroines actually have a route in the original source. You can't complain for the pairing of the main characters, where the sub heroines are just supporting characters.