It doesn't reveal they don't have no clue either - the problem is that both "Doesn't actually understand" and "Does understand but saying it because they think it'll benefit their products" look exactly the same from the outside.

All we know is he's saying things that are technically incorrect. And I'm not sure where that falls on the line of "Just Acceptable Marketing BS" to "Lying to the market about a Publicly Traded company" that would fall if he does understand it.

And while true he very much had deep technical education and roles, he's been C-level for over 30 years now. And a lot can change - both in the underlying technology and an individual's technical understanding - in 30 years.