Yes, the points in the Quora-link are valid. Also something everyone with an extreme political position is using to dismiss the official unemployment rate.
That bein said, this is a terrible thing to do to people if you ask me. And maybe not doing it and having higher unemployment would be more humane. But I'm no eypeet, just a guy with an opinion.
Also, out of experience, in Germany you are not officially unemployed if you are in a training program sponsored by your oocal unemployment agency. Also a nice way to optimize your numbers. And the explanation why there is a whole industry built around just these trainings.
When Germany introduced all these thing back in the early 2000s, it was tough. Germany was called the sick man of Europe. Maybe, these initiatives, Agenda 2010 it was called, were not totally wrong. Downside was the creation of whole class of people that aee basically stuck at the lower ranks of the social ladder. So, good for the economy, yes. Good for the country maybe. Good for society, I would say no.