Feilong's Frame Data

Was trying to understand fei’s frame data:
looking at the legend for it:
does “Frame Adv. Block” mean the higher the negative value the less time your opponent will take to recover?

Negative values on blocked frames are bad. so if a move gives -5 frames on block that mean you’re opponent has a 5 frame window to attack again back before you can recover. +5 would be vice versa; you have a 5 frame window to attack again before your opponent recovers from blockstun.

gotchya, thx