UnifyID interview questions

Really weird and rude experience - recruiter reached out to me after I applied online saying that the hiring team was really interested in my qualifications. I get on a call with them (which now just feels like a waste of 1 hour of my time). After the call, they said that my background lines up with what they are looking for and to clear some time for later in the week when they would send the next technical interview. Suddenly get an email the week after saying to wait 1 more week since they are busy internally. Then I get a generic rejection email saying they are no longer interested. Like if you are going to play around and not treat this process seriously, why are you even interviewing and wasting other people's time? Big red flag - would think twice about applying/interviewing for them again.