Thank you as always for taking the time to make these video reviews!
But regarding Baidu, there has been a version 4 beta (differing Builds, needless to say) for quite some time- time enough for it to be considered a mature product.
Secondly, an anti-malware product that includes any sort of functional Proactive Protection (as BAV purportedly does) should absolutely never allow the garden variety Ransomware that was seen in your test to cause system harm. I can certainly understand it getting by definition detection as the malware is constantly modified to avoid this, but allowing the mechanism of the attack to proceed without a single Proactive peep is indefensible.