Actually yes he did. He did it live on TV. Also again he and the PTI were not the first to speak out against the MQM. PPP and ANP have been doing so since the late 90s and much of the 2000s. Specifically the ANP. Or have you forgotten the Pashtun attacks from 2004 onwards? The largest ethnicity in Karachi after the “Mohajir” community are the Pashtuns. And they were pitched battles in many parts of Karachi between the armed elements of the ANP and the MQM.
I am mean seriously how do you guys not know this stuff?