The thing is, real cryptographers and computer security experts never use language like this. You'll never here Daniel Bernstein (or whoever) call ciphers "military grade". Moxie Marlinspike never calls Signal "military grade", even though it's probably superior to most actual military systems. They know better.

What do you believe the thing is?

It’s just marketing wank. The majority of marketing is like that, to be honest.

Everyone is trying to over sell everything in every which way.

It’s wholly unremarkable that advertising drivel is completely out of key.

Like I said, these real cryptographers aren't the ones going out and selling the software. Marketers use whatever terms their audience likes to hear.

If it's a three person SaaS start-up or whatever, there's no guarantee there's a dedicated marketing team. And even if there is, the engineers/managers don't know better than to tell their marketers "hey don't use that kind of language". And the marketers selling a security product don't know better?

Sure, it's entirely possible that the product itself is absolutely solid. It would be a bit silly to rule a product out on this basis alone. But when evaluating a product, it's fair to "do a double-take" when seeing language like this.