Crossover for Work Director of FP&A interview questions

In my case, the inteviewer never showed up, even though they sent me the linked, and I login on time, to the correct Zoom ID. I waited for 1 hour. This is because I have previous interview experience with them and she was later for 20 mins. Later I received an email saying the hiring did not put forward my application. While I have absolute respect to their decision, my disappointment is why did they even send out an interview invite, and if anytime they stop my application, why no communication but let me wait? This is very very very unprofessional, as noted by many media coverage.