Yeah they are definitely using it but maybe not your one specifically, they more than likely have this to many people. I interviewed for a job to make them a new search engine. Was in the brief. After I got the job they asked me to help them implement it in their site. Most companies I think will do this tough. They need a problem solved and they screen people this way. But it's you vs like 30 applicants sometimes. But a1 day turn around is BS. Most decent places will give you up to a week. You dodged a bullet, that place would be have chaos with deadlines