In many countries outside the US the term University is protected in law for institutions meeting some very rigorous criteria, so clarifying on what basis it’s called a University on a very international forum like this is useful for those not aware and who might make assumptions about what is meant by University.

The ISU is an accredited University which offers formal Masters degree programs, while Singularity University is not accredited and does not offer formal graduate or undergraduate degree courses.

>but otherwise I'm not sure why you claim it doesn't deserve the title "University."

Just because they can use that title doesn't mean they necessarily should, especially an organization rooted in academia that wants to be taken seriously. Even if it is legitimate and well intentioned, spuriously using the term 'university' and having a disclaimer like 'Singularity University is not a degree granting institution' in fine print definitely doesn't send the right message. I don't think it's an issue of whether they deserve to use that term but it gives the illusion that they're in company with other dubious non-accredited 'universities'. It's just bad optics.