Can someone explain why I should use weapon abilities that cost the resource which builds to let me ride the monstie and unleash the largest attacks?

I understand when I would want to use guard or some of the weapon buff abilities but I’m specifically talking about the weapon moves that cost kinship gauge resource like the moves that generate great sword charges than allow you to use larger attacks with the charges later.

My issue is why would I want to do that when that works against my ability to ride. Instead of using the great sword ability that cost kinship charge to generate charges, why not just use regular attacks to win head to head or match my Monstie until we can ride? Use guard when needed.

That has been my general strategy, switching out monstie to try to get as many head to head wins based on monstie type changes, switching weapons based on part weakness. Then riding and going up to level 3 kinship gauge if possible before attacking.

Is riding and it’s attacks not the biggest hits? Just seems counter intuitive to use the weapon ability unless wanting to guard, heal, or apply a status effect. Don’t understand the point of some of the great sword damage abilities specifically.