Seems like a solution looking for a problem. What is the documented
SAFETY problem they are trying to solve? There isn't one.
What they can offer with this astroturfing product to managers at airlines the illusion of enhanced control of employees. The pathological need to control subordinates and turn humans into robots is in the DNA of managers everywhere, this is just a better tool to satiate that impulse.
There are
apps and software for office workers that monitor toilet breaks how much time they spend away from their desk, keystrokes, and screen recording etc. Just an extension of this concept. In order to get the sales pitch over the line they add the "stressed" voice safety case. Just another bogus argument trojan horse to get the technology in the flight deck, then mission creep will deliver the manager's nirvana.