I have seen a couple of games from the SPL. Not in full, but many parts of games when Ronaldo played and it is himself who misses opportunities or who doesn't play very well and yet often behaves as if he complaints about others.
And one more thing that I think doesn't make sense to talk about is that you say that Ronaldo said the people of Saudi Arabia make him happy. It doesn't matter whether he genuinely means it or not, but do you really think he would say the opposite when that was his true opinion? He was literally bought by the government for half a billion dollars. He would never dare to say that he is unhappy.
Currently, they are ranked between 35 and 45 ranks on different rankings with we have too many strong and reliable leagues which are doing impressive for the decades, so we have to wait for many years about them how they can survive at the top and with this current investments can they live for many years or this all is just bubble nothing is clear Ronaldo and few other top players having enough money, so now they can vouch for this league, but we have to wait for solid performance and quality games.