As far as I can tell, there hasn't been any changes to the spawn rates of Scintillas in 0.96a. Basically, Novae spawn at the expense of Radiants, and Apexes spawn at the expense of Brilliants, but the spawn rates for the rest look pretty much the same (including the spawn rates of the cores).
In 0.95.1a, the average Ordos fleet had around 5.52 Brilliants and 4.18 Scintillas, so averaging around 13.9 fighters per fleet. In 0.96a, without the Brilliant fighters, but keeping the Scintillas, the average Ordos fleet should have around 9.7 fighters per fleet. So, around 30% less fighters (that you can loot) than before.