I think Yaaqoub al Mansour actually killed the whole of what was left of banu hilal and sulaym and the "regret" speech at the end of his life was him appeasing his own guilt.
berbers since the dawn of time have been servile for the status quo which checks out with modern moroccan populations,at least the westernmost and southwestern morocco berbers, banu hilal are the polar opposite and unruly nomads
Berghwata were genocided by other berbers servile to their arab masters so they're not even really in the talks and have little to no historical continuations besides very loose to southern masmouda (and possibly jbala who are sometimes classified as masmouda tho unruly unlike the western serfs)