I faintly remember a thread like this, but i wasn't able to find any, so here i go.
Why did Blizzard stop with mounts FoS? An overall simple and legitimate question, coming from a person that values feats over certain mounts.
I just cannot see why, for example, the Raven Lord should give one, while the Swift Zulian Panther or the Onyxian Drake don't.
It is obviously not a matter of difficulty (since Onyxia is harder than Anzu), and the drop rate is almost always about 1% for those mounts.
The last mount to give a feat was Invincible if i recall right.
So yeah, why's that? Feats of strenght are a nice additional reward for the long grind one goes through, and since they don't give achievement points, i see no reason to keep handing them over rare mounts.