Emergency isn't needed government can block roads and mobile phone serviceGovt will have Intel what molana is planning. Molana wants to disrupt law and order for his personal vendetta. Emergency can be declared to stop this so called March which is against Pakistan interests. This March already putting Indian atrocities on the back burner in Pakistani media.
Emergency can also change the political discourse but it is better than letting molana to side track Kashmir for a longer period if he gets to Capital.
No one will be able to enter Islamabad
In TLP dharna of 2017 government didn't take them seriously and allowed them to enter Islamabad their numbers increased later