I think that is a reasonable assumption given the data over the past century. I wouldn't view such a statement as a value judgement, but instead as a (possible) interpretation of the facts... The US has a disproportionate share of innovation relative to the rest of the world. Nassim Taleb (originally from Lebanon and educated in both the US and Europe) suggests that this is due to greater tolerance of failure in the US, as opposed to greater risk aversion on the part of other countries.

Note: I'm not passing judgement either way, but I wanted to point out that the idea that the US is more innovative/disruptive is not at all an extreme claim and is in fact one made by many others.