Asiatic Lion = Panthera leo leo
West African Lion = Panthera leo leo
Wouldn’t even be a subspecies, a subpopulation. I doubt it.
I think Frontier is still going by the old taxonomic classification and not the more current, updated data.
The whole "Asiatic subpopulation" thing got reassessed in 2017, and so were tigers (which were now listed as having two subspecies:
P. tigris tigris and
P. tigris sondaica); yet, we still got two "obsolete" subspecies of tigers, namely Bengal and Siberian, which to my understanding are now simply considered populations...
Although with tigers it's a little bit messier because some scientists support the idea of six separate monophyletic clades (and therefore six subspecies).
Although not a cat, the dingo is another animal with extremely confusing taxonomy. Yet, that didn't stop Frontier from adding it, and using the outdated subspecies name
Canis lupus dingo (while, according to current science, the dingo is merely a breed of domestic dog).
Taxonomy has never been an issue for Frontier. I don't think this is going to stop them from adding the Asiatic Lion under its former scientific name of
Panthera leo persica
Edit: several zoos still use the old subspecies name; and it's not just smaller zoos either, as even London Zoo lists their lions as
P. leo persica.