Perhaps the article writer is referring to the specific techniques that would be involved. However there is no guarantee that torpor will either be universally effective or universally safe. Plus there will be the danger of a difficult and untimely revival.
And obviously you can't put everyone in torpor, that's far too dangerous.
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“Therapeutic torpor has been around in theory since the 1980s and really since 2003 has been a staple for critical care trauma patients in hospitals," aerospace engineer Mark Schaffer, with SpaceWorks Enterprises in Atlanta, said at the International Astronomical Congress in Toronto this week. "Protocols exist in most major medical centers for inducing therapeutic hypothermia on patients to essentially keep them alive until they can get the kind of treatment that they need.”