Gradescope interview questions

I applied through AngelList and they indicated mutual interest. We set up an interview on a Monday for Wednesday of the same week and the interviewer requested my resume which I sent the same night. The interviewer did not call me at the time they said they would and did not provide a contact number for me to try calling them. After being 10 minutes late, I emailed interviewer with alternate times and they responded saying they are only setting up interviews with people that had education sales experience, which I don't have. 30 minutes of prep time and 15 minutes waiting. 45 minutes of my time that I will never get back. It seems accountability and integrity are increasingly rare these days.