1-grid interview questions

I went into the office twice (during office hours) for an interview and an assessment. The assessment was two hours long. Afterwards, I was completely ghosted, even after following up. A simple "sorry, we went with someone else" would have taken just a few seconds. Instead, I was just left wondering. This is so disrespectful to applicants, especially considering the time I spent coming into the office and doing assessments (for free). In the end it was a blessing in disguise to not be hired here but the whole thing was a huge waste of time.