Poor recruitment process - Nurse Investigator Clipboard Employee Review

I past their initial screening process and was invited to do a case study. I sunk a lot of time analysing the case, only for them to say I didn't make it to the next stage almost immediately. Feels like they didn't even read my analysis, and used some arbitrary way to reject applications. A very poor hiring process. They get you invested and get your hopes up only to reject you so quickly. My advice is not to even apply for any of their roles.