Well, that's only true if you do nothing but Fastblade>Savageblade after popping it though right? If you throw 1 flash in there somewhere, you would come out ahead waiting to pop right before a Savage.
So I guess I should have worded it differently. Something like:
Popping FoF right before your highest enmity skill in your combo CAN result in more total enmity bonus from FoF. But it should never result in less.
