TaskRabbit QA Specialist interview questions

There was an initial phone screen and then a google hangout which the interviewer was at least 15 minutes late to. Both went well. I was invited on-site for an interview and while trying to schedule it and going back and forth with my point person, I was sent a canned rejection email. I find this extremely unprofessional. I understand that sometimes there are other people further along in the pipeline that are a better candidate but do not set up expectations you will not follow through on.