Preguntas de entrevista para el cargo de Software Engineer With Aptitude for R, MySQL, PHP en DC Energy

I rarely write reviews but I feel like I have to for this company. I applied online in May, 2018. In a few weeks they've called me for a screen interview (I thought that it was easy and successful) and then they sent me a code screener, it was easy as well, finished it relatively quickly and I know that I did everything correctly there. After 1,5 month (on August 16) they sent me an email saying that due to the high volume of applicants, they will not be proceeding with me. Then why did they give me the code screener in the first place if they were not going to proceed with me?