Apple Display Engineer interview questions

Stages I experienced 1) Short phone talk with the recruiter 2) Technical interview of around 30 minutes with an engineer 3) Whole-day technical interview with 5-6 engineers I got an email saying they were moving with another candidate without feedback. Even though the interview process starts with an email stating, "We thought you would be a great match for their open position," I found it rude that they did not provide feedback or any reason for the rejection after I devoted so much time to an interview.