TL;DR at that guy's post:

Type-0's battle system is a highly streamlined version of Kingdom Hearts and Crisis Core. If anything, the three-man combat and the button input of Kingdom Hearts as well as the sped-up ATB mechanics of Crisis Core are pretty much hybridized.

Magic has its own Charge Time gauge to make spells increase tiers (e.g. Fira to Firaga when holding Square or Cure to Cura when holding Cross), while the Takatsugu Nakazawa's referring to it as the Supersonic Active Time Battle system can be seen in how unlike FFXII, actions cannot be chained and wait time is imposed in between each attack.

Honestly, an FFVIII remake on the Type-0 engine would be pretty great. Case in point: drawing Spells from enemies--Phantoma and the Altocrystarium.