nah, after whatever barrage/bombardment, Infantry has to come to mop up (I think just that is shown in a part of the vid you posted) ... EDIT I'll leave it at that
If the goal is to hold territory then there has to be infantry mop up at some point, otherwise it's just cat and mouse where "territorial control" is perpetually exchanged.
Yes, eventually, infantry will have to move in to take territory, but I don't think China will be in any kind of a rush to do so. If all of your weapons outrange the enemies, all you have to do is sit back and hammer him until either he commits by making an offensive movement, expands the conflict beyond the LAC, or retreats. And in a limited conflict at Doklam, or even expanded to the entire LAC, there is no reason for China to be worried about India moving forward in an attempt to capture some territory because China will simply cut the supply lines and decimate the forces that have moved further up the mountain passes.
And most definitely, if the Indian army actually advances into Chinese territory, then it becomes all out war. China will fight a war of attrition with firepower and supply, and not boots on the ground. The bombing campaign will most likely last through the winter. In the springtime, after complete annihilation of the Indian air force and air dominance enforced, with the Indian military out of supplies and overextended, and if India has not already pleaded for peace, then China will launch a multi-front offensive in both Aksai Chin and Arunachel Pradesh to recapture disputed territory.