The main issues is not armed group. That is just minor thing if you compare the main issues. The main issues is, how could they can grow bigger day by day and carry out the attack frequently like this without any support? thats likely impossible. So, that means the already won some locals sympathy. The already succes convincing the people thats they are the good guy and indonesia is the bad guy. By giving them a chance to be able to spread their influence and legally supported by the law in form we called political party thats mean we are digging our own grave.
Ok, lets call off this argument
They already had Capital since long time ago, remember mapenduma operation in the past. At the time our Army even doesn't have access to reach their places by foot or other ground assets nearby that's why Prabowo desperately gather civillian helicopters to excecute the operation by Air.
Since long time after Pepera, the OPM or KKB had been operated in Papua hinterland, remotes mountain areas, have population base in great number, have their own economy system, meanwhile our Government mostly hold the Shore area, Cities and bird head of Papua islands.
It just most civillian outside of Papua doesn't know much truth behind Government facade as most of us doesn't have mean to gather or access information at the time. Now after reformation era, Gus Dur decision to open Papua had much meaning for all of us. We know what happened there and decisively replace our attitude and policy against them. Then decades ahead Jokowi decision to open Papua hinterland by ground infrastructure (following SBY piecemeal infrastructure building) had much meaning and greater impact as now our authority forces had greater access to enact law and order in traditional area of those KKB/OPM. The opening of Papua hinterland too causing the movements of people as most of them in search of jobs offered by government or mining corporation and other economy opportunity, this especially Papuan population from coastal areas and other ethnic from outside Papua in which had tendency to acknowledge themselves as Indonesian in which surely would attract clashes against the old order in the hinterland Papua.
I had said before, this clashes would be more and more frequently happened in near future. As KKB/OPM surely would try to preserved the status quo, by hindering the building of infrastructure and communication,Made threat against outsider even against Papuan themselves (mostly who came from coastal areas) and fighting against government forces who trying to build and assert Indonesia authority there.
To put KKB/OPM as terrorist organization had more deeper meaning though. The government had known such organization being to able to deploy a number of fighter is in need Capital and funds. Even more those fighter in jungle actually only acts as propaganda piece tools for their true actor and agents propagandist, in which much more dangerous for Indonesia politically in our foreign diplomacy. Thus by recognizing KKB/OPM as terrorist organization we can Made those actor alongside the funder as accountable for their activity.