Have you thought about the fact that all parties are monitoring the OSCE mission to occasionally accuse them of collaborating with the opposite side. Besides, this is not the full video. There is a continuation is not available to the public.
Correct. Also OSCE monitors mostly observe the demilitarized zone between both hostile sides. It makes sense, that said no mans land is at all time under the watch of either cameras or satellites for any activity by opposing side.
If indeed one side decided to provoke the other or international community, it wouldnt do so by blowing up single patrol just minding its bussiness.