Actually Swedish govt has really good IT. I use the actual app a lot with 3 kids in the school system here in Stockholm. It's not that bad, functional UI, but non-IT folks could easily have problems. Some stupid decisions - like a whole new app for reporting absences - where you get redirected there, but with SSO.
I suspect the contractors here are the bad boys, but there should be somebody in Stockholmsstad who stops these ridiculous changes. Probably the project mgr in Stockholmsstad is not technically literate enough and is getting hoodwinked about this app being a security threat.
I hope this publicity changes things.