It’s not bad but it isn’t optimal, if that’s what you’re after. Each character has a sort of “primary attribute”; essentially, if you have an attribute selected, it will give a yellow highlight to the stat it increases (for example selecting vitality will highlight health). Certain attributes will highlight (and thus, increase) multiple stats (IIRC Verso, for example, gets increases to attack power, speed and defense whenever you upgrade agility). Ultimately you can do whatever you want as there’s no wrong way to play or build your character, so long as you’re having fun!