"The number of men using testosterone to try to boost their energy, sexual function, and mobility has increased in the past two decades,"
Here is the thing. Tongkat Ali/Longjack is advertised as a testosterone supplement, although it is not. (it is an aphrodisiac) But! It does give you more energy and increases your libido.
So although it is kind of false advertisement, its effect is still the same, what we expect TST to do for us! Thus the article might be technically right about certain supplements but practically still could be wrong...