Well, you can.
I can't see why were you even arguing about something which I also stated.
Anyways, Servant parameters are quite meaningless compared to what kind of abilities you can have.
Having full A stats is nice but it's meaningless if you have no special abilities aside from being a good fighter and the enemy has a one-hit killing move.
That's the point.
Such concept for limiting the stats points you can allocate may work for many other RPs.
It does for Es' mecha RPG.
But it doesn't work for a HGW game.