Then neither is the fact that woolly mammoth went extinct in the last ice age replicable. Or that dodo birds ever existed. Or that George Washington had wooden teeth. Or that the earth was once the center of the universe. Or that Jesus walked upon the water. Or that Jesus was born of a Virgin. Or that Moses parted the Red Sea. Or that Adam and Eve were prevented from returning to the Garden because of a Flaming Sword. Or that there ever was a Garden. Or that Adam was created rather than evoluted.
In other words, according to this standard, nobody knows anything.
Creationists included.
That's precisely the purpose of such a line of argument. Swamis, since the beginning of humanity, have done their best to convince the gullible that they (the gullible) don't and can't know anything. Which leaves the swami in the delightful position of being unchallengable when he declares "wisdom" to which he -- and he alone -- has access.
It's an old story, with many variations, and there is never a happy ending. In some of the latest versions, the next step, after persuading folks that their powers of reason are an illusion, is to take the followers to Jonestown, or invite them for a ride on a comet, etc. Welcome to Swami World. In this case, the entrance gate has "creationism" (or ID) signs plastered all over it. Just turn in your brain and go on in.