Well,I believe that sasuke/ naruto hadn't Hagoromo chakra separated from sun/moon seal as it was never stated in Manga,DB,Gaiden,Movies,Novel or an interview for Kishi that they got Hagoromo chakra halves separated from the seals ,that is something that fans have litterally made up and everyone believed .
On the other hand ,there is an official novel ,written by one of kishi's closest assistants ,confirmed,illustrated and announced by kishi himself ,states that naruto's rikudo chakra comes with the nine biju ,meaning there is no hagromo chakra half .
That doesn't mean they got weaker at all after hagromo taking the seals back, the chakra attached to the seals doesn't boost their power automatically proved by sasuke's chidori color being white all times except when he said he would use rikudo power ,so the feats Sasuke /Naruto got while having the seals still apply after losing the seals unless if it was proceeded by a statement implies that it was used by rikudo chakra attached to the seals (ex:Black chidori)
You may now ask why sasuke/Naruto got drastically stronger? ,the answer is the powerfull chakra of Rinnegan,RSM and Rikudo senjutsu(the mode of 9T and Rinnegan pattern).
With this being said,you restricted something that doesn't exist ,sasuke still shits.