>>1470I don't think he necessarily means recoil, but rather just some sort of feedback that adds some feeling of weight and power to the attacks, so that it doesn't just feel like your shots are just kinda slipping out of you, weightlessly.
It's the video game version of the different feels between a high-quality posable action figure that you would've saved up your money for months for, and a cheap chinese rip-off figure that you might've picked up randomly at a supermarket for a couple bucks (something that Ashens would feature in his videos).