IMO they don't take risks because for the most part, ABCD is simply marking time keeping this show on the air and keeping it functional. They have no investment in it beyond basic sustenance, and so they choose to simply cater to a shrinking, aging FB audience - keep it middle of the road, keep it running until they can cultivate a replacement. It's the same thing with Y&R at CBS IMO.
Frank, who simply wants to keep the show on the air at any cost (while also playing his favorites), will go along with that because he knows they can't afford to lose any numbers, ergo why take risks or jeopardize the things on the show he is invested in? So instead we get things they know the network will greenlight and FB won't complain about: Tame teen stories, and more and more babies. (Supposedly the #1 thing the network will always rubber-stamp storyline-wise) Even Ava, Carly, Nina, Liz and Sam are all civil or even friendly to each other now. Why??
It's sad because there is potential here on GH, more than a few years ago.