It would. That's beside the point though. The React logo is an abstract shape hidden in the negative space of another abstract shape. The Internet is full of ne

It would. That's beside the point though. The React logo is an abstract shape hidden in the negative space of another abstract shape. The Internet is full of negative space logos of this sort, some more clever than others (React's ranks on the less clever end of the scale). The FedEx arrow is an abstract symbol hidden in a wordmark, of which you can also find a lot of examples, most of which are created by compromising the wordmark's shapes, which the FedEx logo doesn't stoop to. The zzap logo also manages without this, though as you note, it could be improved further. The point is that the React and FedEx logos are in different categories (despite having the "negative space" aspect in common), not just different levels of difficulty.