What that guy was talking about in that interview was replacing NVIDIA in the AI market. They probably mean to add AI acceleration functionality to Elbrus for that kind of workload. That may be useful for government uses, but it won't compete with NVIDIA in the general market, or in the consumer graphics market.
Alexander Reshetov is a graphics algorithm guy. He develops algorithms for software, not hardware. A lot of people don't know about it but NVIDIA has thousands of people working on software, from drivers, to libraries, to doing 3rd party consulting for companies who want to run their application on their GPUs. They assist those customers developing optimized software for them. One example would be the Avatar film, where NVIDIA developed the acceleration software to render the final scenes. They also consult on game titles and develop optimized shaders and code for them, etc.