A labor shortage = an increased demand for labor. If that labor can’t be purchased at the current market rate, then they’ll need to spend more on labor (increase wages), which in theory would come out of the salaries and benefits of the higher ups.

We’ll see if that actually happens though. Articles like this are designed to stir up fears of inflation so that they can get people on board with policies to keep wages lower.

EDIT: Saw the author’s reply higher up. It sounds like this isn’t their intent, but when the sound bite is “higher wages means more inflation”, it collectively feeds into the “be afraid of inflation” narrative that’s been building