I'm not though, versatility means being able to apply various level of feats in different scenarios, reason Kaguya resorted to spamming her S/t was because her list of feats was extremely limited for someone of her calibre.
All dojutsu techs come from her, she possesses every element, and on top of that Six Path Senjutsu is meant to give her understanding of all things, with all those advantages she had do you think someone like JJ Madara or JJ Sasuke would've lost so easily ?
They would be pulling out all sorts of jutsu out of their ass and using their potential to its max, despite all the power Kaguya had she lost without inflicting a single wound on two 16 year olds that only had their new power for about an hour. Raw power doesn't account for lack of fighting instinct
The way you presenting your thought here is piss poor.
ver·sa·til·i·ty
ˌvərsəˈtilədē/
noun
ability to adapt or be adapted to many different functions or activities.
"a writer of remarkable versatility"
Before I go further for a serious rebuttal I want you to understand first the meaning of the word 'versatility'
It never said you need to pull out all thing possible just to be call as a versatile user but enough if you can use number of different capabilities in your effort. In this case Kaguya shows plenty of it.
"ability to adapt or be adapted to many different functions or activities"
-Control ice to trap people
-Ash Bone (from palm or her back body)
-Using gravity manipulation+Ash bone+Yomotsu Hirasaka
-Using hair Senbon
-Using Senpō: Muki Tensei
-Using Yomotsu Hirasaka+Desert Dimension
-Chakra fist
-Massive TSB
Her ability to adapt to many different activities were shown there.
For the reason she couldnt damage the MC was bcus of how author wrote the plot to keep his MC saves. This although not being admitted by Kishi but we can easily read the intention behind.
Bcus if real Naruto was given a chance to be hit by Ash Bone, there is no way Kishi can come out with acceptable plot writing to bring back Naruto.
Every Kaguya attacks are sure fatal.
Better than Naruto way of using his arsenal.