You think the biggest spectator sport in the world, being watch by tens of thousands in stadiums and millions on TV, playing in competitions which are worth tens of millions to their club, doesn't require the ability to handle pressure and expectation?
That is just in general never mind us, a club with expectations far in excess of the norm, in a city where football is at it's absolute core and absolutely dictates how players can go about their life. If you think that all has zero influence on their game and it's purely down to skill then I'm speechless.