Actually we do this sort of stuff in my Sambo class. The teacher in this video is a Sambo guy. Note bio:
<i>Scott Sonnon crafted this video based upon his experience with the joint lethal grappling style of Russian Sambo: 3X USA National Sambo Coach, International Champion, and USA Police Sambo Team Coach, his training in the former Soviet Union with trainers of the elite combat subdivisions of the special forces SPETSNAZ, and his research with special purpose police unit trainers</i>
It is weird stuff. I'll agree with that. I don't necessarily like it when we drill it (whenever we drill this stuff they call it 'Systema'. But it is stuff you don't expect. There is good theory behind it.
Personally I prefer it when we drill more traditional throws, armbars, escapes, etc. Mostly because it is easier for me to 'get' than Systema. But I'll bet your going to be seeing more and more Systema around...