Preparations

Ivar's actions raised a lot of questions. 

At first, when Sam appointed this new team as Managers of the hub, they already felt a bit confused. The sudden disappearance of Joker also left them puzzled, but since the Hub was performing as it should, they didn't look too deep into it.

They even drew rationalizations like .. 'they are talented and not bound by any organization, they have strength and skills. Great pick to run organizations.'

Similar speculations were made and without any explanation from Joker, they just accepted it.

That is the nature of the people. They just try to rationalize everything when they stand to benefit from it. They could even rationalize things like cold blooded murder to mass genocide if they want to. The only factor is how big the benefit they gain from it.