Cleary you've never touched any of the games he's worked on. The only game on this list that contains "micro transactions" is World of Warcraft, which honestly has incredibly small amounts of buyable items, most of them revolving around getting a new character boosted to near max level for the current xpack, race/faction changes, and realm changes.
There are no transactions to make you better once you hit max level, which is where the core game is. Skipping leveling is just convenience, and isn't exactly time consuming to the point of forcing you to buy a boost.
Everything else that can be bought is cosmetic.
If they wanted a huge micro-transaction guy, they went with a horrible resume for it.