OK, this is a different (and better) description than the meme that is going around (see the twitter thread that kicked off this latest round of bikesheding about "10x" engineers).
If someone is a Usain Bolt of software development though, they probably are someone who should be guided into, or are in, a senior engineering role. Glue Engineers / Smokejumpers / problem solvers are different, and useful, but when companies become over reliant on them it is an issue. And no matter how productive they are, they should be held to the same standards as other engineers.
A 10x engineer is just a workhorse who happens to know enough of everything to be truly useful wherever. I like to call them "glue engineers" instead because it's a little more friendly to the team setting. They do exist, though.