The UAE culture is to speak last, not loudest.
When Dubai fucked over the UAE by embarrassing them on a global stage, Abu Dhabi bailed them out and presented a united, cooperative front. Then punished them for it 12 years later.
Khaldoon isn't joking around when he says that the UAE favour long term investments and will ride any short term storms. Like his Trump or the domestic Chinese market answers there, you can see that he's uncomfortable with it because he uses the (in his verbiage) worst word in the entire world that amounts to blasphemy - instability. But he's not pulling Mubadala out of one of their most exposed markets because they invest for the next 20 years rather than the next quarterly report.