This lightning tribulation gave Ves a very necessary dose of reality.
If he wanted to develop a personal Polymetal mech for himself that he could one day use as his own version of a phase lord raiment, then this was not enough to turn himself into an effective combatant.
Ves also needed the courage, the fighting spirit, the combat acumen and the weapon skills in order to make the most out of his gear and other endowments!
It couldn't be helped. Ves was a mech designer by nature. While he did have a bunch of incarnations that allowed him to accrue other kinds of knowledge, very little of it was related to helping him become a better fighter.
At most, he received adjacent information on how other mech pilots and soldiers fought. That was purely theoretical knowledge and did not infuse him with any remarkable fighting skills.