Seriously? If Portugal's game was so much better without Ronaldo, then they would have won against a weak team such as Morocco.
Morocco doesn't even really deserve to be called a weak team. They beat Belgium, Beat Spain and also beat Portugal to be in the semi finals. So I will not agree if someone says Morocco is a weak team regardless of how the game strategy.
Game will be centered around Ronaldo when he plays, because the opposition realizes that he is the player who is most likely to score goals. And this gives opportunities to the other Portuguese players to make attempts on their own.
In fact Santos doesn't think so, he believes more in players who score goals and even score hat-tricks like Ramos against Switzerland to play against Morocco. But unfortunately the plan failed, that's because of the strength of the Moroccan team.
What next? Brazil playing without Neymar and Argentina playing without Messi, so that the game doesn't get centered around these players? In international football things doesn't work like that.
You seem to have misunderstood something, but you have to admit that Ronaldo had been on a downswing even before the World Cup started. At club level he has dropped, but he can still contribute to the team even if he doesn't score many goals. If there is someone to blame, then I think someone needs to blame Santos and his plans, and Morocco who played so well against Portugal.