SpaceX Software Engineer - HW Testing interview questions

Got an email from a recruiter and they scheduled a following up call with HR in the team. After this they gave me an assignment which I worked seriously on this task. I submitted the project and wanted a feedback from the team after waiting 1 week with no updates. Recruiter told me that team is working on some tasks so they decided not to move forward. No Feedback, I feel like they did not even open my project and take a look. it's just a waste of my time and the entire process is really unprofessional. Please! Do Not start the hiring process if you don't want to hire people.