This x 1000. WoT is ok, but at the end of the day a player with infinite money will always have SOME advantage compared to someone who worked hard and didn't pay a single dime. In LoL, the only perks you got with buying RP points were skins and runestones, plus exp bonuses I think. The runestones weren't even a big deal because you had enough for one set, anyways.
LoL is also successful because it was there when people needed an easier form of DOTA and the payable skins are AMAZING quality. I actually tried buying stuff when I was into LoL, but the store wasn't working correctly.
Back to the original topic, I don't think this was a well-planned purchase unless they got some screaming deal/concession, etc. It doesn't really make sense and seems like a hail mary purchase to save jobs/IP.