5353 was regularly shelled by Indian Artillery until 2003 Ceasefire, shoots were directed from peaks like Tiger Hill. Pakistani retaliatory fire was quick at the FOPs. But Indians having surrounded the peak and having better artillery (FH77B) could easily start observing from the other peaks in the area and sustain attack. The post at 5353 even caught fire once due to Indian shelling. Yes, many infantry attacks were planned and cancelled due to strict orders from the top. No one wanted another war in this terrain. However, no amount of Pakistani presence on 5353 could've stopped an attack if one had ever materialised. The problem? It would have caused unacceptable casualties on the Indian side and the fact that it lies in Azad Kashmir.
After the ceasefire, it was practically impossible to take back.
My point is that the strategic significance of 5353 is now next to 0. It's surrounded from the Indian side. The post would be destroyed if as much as a shot is fired towards the highway.