How on earth are Tesla, Uber, and T-Mobile not "high-tech"?

They're not exactly building leading-edge stuff, though they sometimes buy from companies that do.

Out of those you could only make an argument for Tesla, because at least they were pushing the envelope for a short while in the past (though more from a business standpoint), rather than merely operating within the possibilities of existing technologies others created.

Generally a high-tech company will have significant research (not development) spending, which T-Mobile and Uber don't.

But that chart is awful either way.