GM of Singapore Flyer Kena Fired?

As published on Straits Times:
IN A shock move, Singapore Flyer general manager Steven Yeo - the public face of the attraction since the Dec 23 incident which left 173 people trapped on the giant observation wheel for six hours - has resigned.

He tendered his resignation on Monday, giving six months' notice.

But Flyer management told him to go immediately, and by yesterday afternoon, he had cleared out his desk.

So is it OK that I inteprete this as he was asked to resign? If he resigned, this would mean he got no compensations from the company. Or in other words, he just got fired.

Finally, one right thing is done. Of course somebody has to be responsibility for the incident. The one sitting on the top cannot be immuned of this. There got to be one scapegoat. Somebody's head got to be rolled.

But why there is no head rolled from the top level in the Mas Selamat case?

The source is here.