While I've done similar tests and videos in the past, there is an issue with this method of testing. Yes, he tested the Behavior Shield, but not all proactive features. File Shield has two components that are proactive, standard Heuristics and DeepScreen. Both initiated via File Shield. Heuristics by scanning the file and DeepScreen the sandboxed analyzer which uses behavior analysis too. Part of File Shield is also their remote behavior analyzer CyberCapture. I can't say what would be the result then, but it certainly wouldn't be the same or worse, that's for sure. There is unfortunately no way in testing that separately as they don't allow disabling of strict signatures (of which some are generic and algorithmic which detect even new unknown things).