The way I read that though the NASA statement is silicone is fine with oxygen up to 40% which is your Nitrox certification level in the USA.
European standards state it has to pass "also with a pure oxygen working test" which means the regulator has to be oxygen clean for mixtures from 41%-100% which isn’t "nitrox".
Therefore it is rated for standard nitrox, it just has extra requirements if diving in European countries.