Same number of studios sure, same number of teams maybe not.
one set of studios puts out Spider Man, Horizon, Bloodborne, Uncharted, Last of Us, God of War, etc. The other is putting out sea of thieves, crackdown 3, state of decay, Halo, Gears, etc.
It's not a numbers game, it's the quality difference between the studios.
Having said that, can't wait for wasteland 3 :)