One scenario the FAQ changed:

defender: VT-49 (agility 0)

attacker: Wedge (agility -1, change to 0)

outmaneuver on Wedge (agility -1, change to 0)

stealth device on VT-49 (agility +1)

Prior to the FAQ that resulted in a total of one, not zero.

That is the problem created because cards contained the "to minimum of 0". Without that language on cards there would have been no need for this FAQ entry.