Against Low Kicks

Very good idea!

Hard to see what's happening and traditional low kick users mostly check/ block or inside kick so this work looks unusual.
Using your arms is not common as a kick to the head is always a worry for Muay Thai and other traditional low kickers.
Systema is not a sport per se so it's a different mind set.
You have to be 'in the movement' and relaxed for this to be effective. High level for sure.

The internal mechanics of systema are amazing but i think it needs to be coupled with the external “delivery mechanism” of something like boxing/muay thai/wrestling for it to really shine and work practically.

Brilliant!

昔と比べれば加齢に伴う身体能力的な衰えはあるだろうにそれでもやはり動き出しの早さとかトータルの洗練具合がやばい