the thing is that mahoraga works different with limitless
considering it took IV like 5 tries to finally be adapted
and sukuna said all he needs is 4 spins for gojo to die
this is all with sukuna thinking gojo will only use blue
so even if mahoraga only adapts to blue , red and purple still exist
despite having that in his mind , sukuna said it is gojo's death count
so i guess mahoraga adapts to limitless as a whole after 4 spins
all of this + purple prob wont work on mahoraga anymore