I wondered about that - perhaps the map should be "Oldest business registered with a western institution" or some such. Meaning, being known to westerners makes them more real.
But do you seriously reckon all those European businesses from the 800s were registered as a company?
This map is nothing but a racist pissing match created by enlightened Europeans who've worked out some novel way of considering them better than the civilisations they trashed. It's an embarrassment.
Not the person you are replying to, but: I don't think anyone set out to create an intentionally racist map. But the effect can still be racist. If it's based on data-sources and concepts that have a Europe and Europe descendent focus, and then presents them as facts about the world, without acknowledging the perspective, that is problematic. If further the tenuous continuity claims in some European countries, that are little more than advertisement, are put side to side with much stricter formal registration data from other countries this starts being quite deliberate.