It's a little bit of an overgeneralization but it's a feature which is disabled by default and generally described with caveats like for experts only, in certain situations, etc. while it's such a routine way of life for Git users. I really do believe that's the sign that the Mercurial community is a lot less comfortable with that working style in general and that impression has been supported by the general clunkiness and obscure failures which is completely unlike the normal Mercurial experience, suggesting patch queues are an under-loved feature.
I am happy to see phased commits - perhaps that'll start leading to a little more UI support for operations which historically were considered edgy.
No, plenty of people like patch queues, including me. They are very good at what they do.
I prefer git overall, but let's not bash competing projects with huge overgeneralizations like "nobody really believes you should use [patch queues]".