Why wouldent he use FTGyou really think that minato´s basic speed is higher than A´s lightning armor speed? there is something wrong with you than, cause if minato´s basic speed would be higher than A´s armor speed, so why would he use FTG when they faced each other?
FTG is perfect for an almost instant counter attack
When if he dodges normaly it would delay his counter attack also leave him open for a quick response from A after he dodged
Thats like me asking Why A used lightning armor vs sasuke, Does that mean sasuke is faster just because A used his lightning armor?, No same goes for minato using FTG against A
Its like me saying Is A the fastest shinobi Not counting lightning armor.
Pointless because no one can prove Minato is faster than A or A is faster than minato
Saying A is faster just because minato used FTG to dodge proves nothing