That’s literally not what it says though. It tells you how many of an AT exist, not how many players have made the AT. It just so happens those numbers would be more or less identical for EATs. The point is those are two VERY different numbers for any non-epic AT.
If the graph showed how many players have made each AT, it would count me once for every AT. But that’s not what it’s measuring, so instead it counts me once for each EAT but 11 or 12 times for, say, defenders.