And the likely reason is stated right in the article
by Steelhop (2021-08-02 12:43:54)

In reply to: And in places like Austin, sadly it's on the brink  posted by knutesteen


--Adler said hospitals are also seeing a staff shortage which could be causing the lack of ICU beds available. --

So COVID might be a reason but staffing is a reason too. There are ways to fix staffing but hospitals don't like to bring in contract staff unless they absolutely have to do. They will of course do that but it is cheaper to lament the issue in the press.