National Nurses United interview questions

I had a phone screen, a phone interview with an organizer, and then a zoom interview with the two directors of the external organizing department. I found everyone to be very nice- the organizer in particular was extremely supportive and transparent which I appreciated. At the end though, I was not told I didn't get the position. I sent a follow up email 2 weeks after my last interview and only after that, I received a rejection email. I find this disappointing and disrespectful.