Rejection Phonecall?

Been looking for work while in university - especially entrylevel office assistant duties. After a job interview, the recruiter scheduled a phonecall with me.

Excitedly, I though "maybe it's good news - who schedules a phonecall to reject someone?"

Apparently, WA state recruiters do!

Why do y'all do this? You don't even offer feedback during the call, so why not just shoot a rejection email - do you just like hearing our hearts break over the phone? Like, seriously!?