I have a good friend that's a recruiter for a top 20 flagship research university in the US. Her line is always, "We're education. We don't do things like ghost jobs and ghostings." She'll then often tell stories where she and her colleagues do the exact same thing you hear in the private sector.
Recently she asked me if I thought it was ok to go ahead and fly a candidate out for an interview knowing the funding had just been cut. Her boss (in recruiting) wanted to anyway in case the funding was restored. Luckily the hiring managers refused to go ahead.
some universities just fly candidates to show to the dean as proof that they're working towards the school's AI initiatives. last year a school that flew me made a huge deal about how serious they were about AI and all the infrastructure they were willing to purchase for the 60 new faculty they were hiring across the entire school who do AI work.
they ended up hiring a psychology major who does nothing AI related.