Mostly theorycrafting. Could prove an useless post depending on how the AI KP unit STMR works

So, when I first glanced at AI Katy's STMR, one thing really caught my attention.

It enables "equip whip".

This means, mostly, that if the STMR has 50% TDH, you can get using it Yego's TMR and STMR:

176 ATK w/ 1.3x var [whip]
40 ATK 40% ATK 50% TDH [acc ]
50% ATK 50% TDH 20% MP [materia]

A combo of 40 ATK 90% ATK 100% TDH using 2 slots, a highly strong weapon should probably roll into BiS for every TDH unit.

As an example: CG Rain!

He has 200% TDH innately 50% ATK with a greatsword.

With this build, he would get a 40% ATK over simply using a greatsword, cap on TDH and all that with a ton of open slots.

Now, I know Aigaion's Fist is coming soon - with its huge 1.5x var. Buuut, this is really slot efficient and could see some use on builds.

So... is Yego finally useful? Curious on what are everyone's thoughts on it