It is, but as I understand it, it's all just phishing. I haven't talked to anybody at a CA (maybe excepting Nick here?) who has told me direct cache poisoning attacks on the DNS have been a thing for domain hijacking. Like, full-on BGP4 attacks are more common (in that they actually happen).
If he wants to correct me on this, he should be probably do so more clearly and less evasively? I'm being pretty specific and making claims that I think are pretty easy to falsify.