Yeah, that guy could be two guys, working four day weeks. I guess they'd overlap on Thursdays, but that's a detail.
Edit: it's an increase in full-time workers, with less increase in part-time workers.
https://fredblog.stlouisfed.org/2017/08/a-glass-half-full-or...
I don't know if this covers everyone. Anyway you may be right, employers just want all the work from all the people, at the moment.
Why would a capitalist business owner spend more money?