You have to go down to #31 to find an Unreal Engine game (Batman: Arkham Knight). The only licensed engine game that I know of in the top 30 is Titanfall, which licensed the Source engine from Valve. The situation is similar for the PS4.
So, this is correct and I thank you for the correction. Having said that, I don't think that changes my point much if any -- there's one game in the top 30 sellers that uses Unreal Engine, and it didn't use it as a third-party engine -- Epic developed both UE and Gears of War.
By and large, the developers of AAA games don't license an engine from a third party.
[1]https://en.m.wikipedia.org/wiki/List_of_Unreal_Engine_games