A pre season tournament has zero effects on how a clubside approaches a new season and to be honest; pre seasons are just to gain match fitness and fix match rustiness. To put into context, this is Rangers last pre season game while it was Real Madrids first ofcourse a team has to be fitter.
It does have some effects to some extent on the side of signing new players and renewing contracts. If Madrid lose like 2-3 matches in a row. There will be too much pressure on the club to buy a couple of good players. I have seen this kind of thing happen before.
Without preseason, the team would be comfortable as though everything was OK.