POGO is technically legal as long as these gambling companies comply with all the necessary needs to make their operation legal. For a gambling-friendly country like the Philippines or any other, of course, the only allowed gambling companies to operate are only those who have the required license that was being approved by PAGCOR.
The problem is not the POGO itself but it's usual to see that there are lots of gambling companies that operate illegally. These companies, since not regulated, are saving their asses in paying taxes and they also compete with legal gambling operations.
There might be some corruption too that's why some illegal gambling companies can operate under the shadows and that's where the problem starts.
exactly what you said, definitely there is corruption involved why the existence of illegal gambling companies. because they won't be encouraged to do their business illegally if no one will back-up their business. so for me, they can exist so long they are complying with their government protocols.