Of course they're ok--they're Russian.
The real question is what the f*ck were they doing? The sad truth is that we'll probably never find out, given that near-death experiences are nothing more than an everyday part of life over in Russia. These two dudes either got fed up with fishing poles or, more likely, were the unlucky bastards picked to test out the timing of the new Soviet F1 Hand Grenade.
Either way, these guys got their sh*t rocked and fortunately missed death by inches.