I work in an ICU. I think it’s a very bad look. The one with the haka was terribly misjudged.
Where I work there is simply no time to do this, and it would be seen as unprofessional even if there were time.
That doesn’t mean that anyone hates the people who’ve done them, just that we’d prefer it to stop now. There are lots of other ways to let off steam, without undermining professionalism.