Apollo
VIP
Is it possible this hypothetical possible pending speculative ancestor was benadiri admixed from the his maternal line so it doesn’t matter and the L is just a Neolithic coincidence
It isn't Neolithic man.
Male lineage L does not exist in Ethiopia and is completely absent from South Cushites.
South Cushites are a good time-capsule as they carry all the paternal lineages present in Somalia before the modern-era (E-M35 and T-M70). They don't have L, but they do have T.
Your L lineage is from modern-era migrations.