I was job hunting 2 years ago. I spent literally hours on every application tailoring it to the specific job and the questions they asked.
Even though I was only after fairly basic, part time work most of the application forms were excessive, asking for paragraphs on what was my biggest achievement, where had I made a difference to someone's life, give an example where I had solved a conflict, what was I proud of, where had i learnt something from an experience etc etc.
Obviously some details like that could be relevant but each application was taking 3 - 4 + hours to properly complete. Fine for higher level positions but over the top for part time administration roles.
Then after all that work to complete the form, mostly I'd hear absolutely nothing back at all. Not even an acknowledgement.
Job hunting is absolutely sole destroying and potential employers are very rude and unprofessional in not even sending an email acknowledgement or thanks but no thanks message.
I did manage to secure a job with a great small business. That business owner was the only one who just wanted to look at my CV and have a chat.
If someone has been job hunting for a while I can imagine they're totally run down by the application process. They may also have the job centre on their back demanding a certain number of applications per week regardless of suitability.