I don’t know if this is this is the same font that was going around before buy accessibility advocates quickly flagged it didn’t work with screen readers. Logically if a screenreader can read to a human, a scrapper would be able to read it. So this approach is probably a non starter.

I saw headlines about this before and ignored it, but actually reading the page this time I see that it’s much more sophisticated than I expected, especially the part about having a mechanism to locally unlock for accessibility with a compute cost.