If karma worked versus bjuu avatars then jigen would of used it versus naruto yet he instead decided to punch him out of the form showing that he's not strong enough to deal with the avatar on it's own
Adult sasuke is genin lv, He struggled versus momoshiki who boruto could beat. The same chunnin arc boruto who hours earlier was having trouble with random genin like yurui.
If karma worked versus bjuu avatars then jigen would of used it versus naruto yet he instead decided to punch him out of the form showing that he's not strong enough to deal with the avatar on it's own
Jigen also had body changing factors to consider. It would not have been necessarily wise to give more power to a body he planned to discard very soon.
Besides those reasons, why are you so sure of what decisions characters would make?
Adult sasuke is genin lv, He struggled versus momoshiki who boruto could beat. The same chunnin arc boruto who hours earlier was having trouble with random genin like yurui
Jigen also had body changing factors to consider. It would not have been necessarily wise to give more power to a body he planned to discard very soon.
Not a hour or so before the momoshiki fight, He was struggling versus random genin.
Are these random genin also kaguya level? Actually by your logic they would but that just shows the rididious of the boruto wanker position really