Officials have the right to prosecute those who initiated the coup; the masterminds. But not regular citizens that partook in it. This would take way too many resources and too much time. And considering that the entire Turkish military is against the government, it's basically impossible. Not to mention the millions of citizens against the Turkish government as well.
I do believe that officials have gone to far with ordering over 1500 Turkish university deans to resign. The educational system is not the problem, and these deans are not the problem. The people of Turkey want freedom instead of harsh regulation, and the coups will continue until they receive this.
Yes, officials are going too far when 1,577 university deans are asked to resign following a failed Turkish coup. It seems as though the primary objective in this situation is to get rid of anyone who could have possibly be involved instead of simply the guilty culprits. This is an extreme measure.
Turkish officials are going to far in the government crackdown after the failed coup attempt. Many fear that the Turkish government will use the attempted coup as a way to purge the government of political opposition. Furthermore, the country could limit the personal rights and freedoms of its citizens. In short, the Turkish government is likely going too far in its response to the failed coup attempt.