Eh, i couldn’t tell you like, what ⅒ of those currencies were, but if I’m not mistaken those “currencies” author is talking about are really more like xp unlocks for specific gear. PvP/PvE gear have their own stats and tiers and “currency” cuz before this was implemented, it was tough for beginners to get geared up for tougher dungeons (no one wants to run a PUG for an hour or 2 and get nothing) and back then top-geared PvE guilds could roll dedicated PvP groups with their PvE purples.
It’s not really a problem I’ve heard players complain about
Worth noting it’s 1st only in gross profits, 5th in copies sold. 1st place in that regard is still GT3 A-spec. The article mentions increases in price per unit is why its the highest grossing