You are wrong again
According to your own post, it is NOT "必须等立案调查后". As long as there is an initial investigation that shows clear evidence, a person can be sacked. "立案调查" happens LATER. This is exactly what happened.
According to your own post, it is NOT "必须等立案调查后". As long as there is an initial investigation that shows clear evidence, a person can be sacked. "立案调查" happens LATER. This is exactly what happened.