Yeah I'm noticing the same thing. It's been well over 45 days since I've seen a non event Girl drop. Before FinalMecia was released I was battling Gruntt for the then Final Story girl drop that I needed and I got nothing.
I do agree that it does feel like they lowered the drop chance percentage for non event girls to the "It must be a Miracle" level
Jessie had already said that this was a "generous" bug that happened. But from what I understand from the new system you still have a drop rate.......umm, forget what its called......RNG???...anyways what they believe added was if you go for a month for example without getting a girl your drop rate goes up a bit till one drops. If another month passes the drop rate increases more. So on and so on. Once you get one, the rate go back to the original rate.
This is how I understand it.
-Shadow
I saw that as well. Jessie did not, however, mention what actions were taken to fix the bug. It's quite possible that the feature was simply removed until it could be reworked. The HH team is quite small so it is a viable possibility. I'm not saying that this has happened, but as others have noted, drops seem to be fewer and farther between.