Tential HR Assistant interview questions

This company has such a ridiculous process; They reached out to me via phone to get my information multiple times and interviewed me 3 times (twice over the phone and once in person). The recruiter even told me to save his phone number as well as the number of the head of HR who would also be interviewing me. When I arrived at the office for the in person interview, everyone greeted me and introduced themselves to me which at the time seemed like a green flag. Then the HR manager took me into a conference room to ask me basically all of the same questions she and the recruiter had already asked me over the phone for an hour. After that, she took me to her workspace and gave me a detailed rundown of what my day to day responsibilities would look like (which also seemed like a green flag) and introduced me to the other people I would presumably be working closely with and even gave me a treat as someone had brought a whole box of cookies for their one year anniversary with the company... Just to send me an automated rejection email the next day... Just wow... Seems like these people are super disingenuous with their applicants and as upset as I was that they ran me around, I don't think I want to be apart of a company that operates like this anyway. Don't even waste time applying to this place.