They're not hiding. If you follow Pakistani media, they are indirectly admitting that situation on border is not ok. They're not saying it directly, rather they associate bomb blasts inside, Indian action on LoC and saying we are facing severe "Challenges" and enemy is trying to hurt us from all fronts.
These fronts include declining Paki economy, declining Paki tax base, weakening Paki rupee, and a section of Paki elite openly hostile to Paki army.
India cannot apply significant pressure from LOC. Unless India decides to use big artillery across a broad front. The current actions by India are localized and largely to stop infiltration.
Bum blasts are common in Pakistan. Enough people have reason to take up the gun due to Paki army brutality.
I think explosives and guns are in circulation in Pakistan from long drawn Afghan war. Plus Paki army may be making money on the side selling this stuff.