I'm not sure arrogance factors in. If you compare interviews now with just five years ago it's like night and day. It used to be a short phone interview then an onsite. That's it. It was relatively quick and easy on both sides. It was also unreliable.

The flood of unqualified candidates into the job pool has made the task of sifting through resumes and talking to potential candidates far more time consuming. The time requirement alone has made the old way of interviewing untenable.

The hoops are a way for companies to limit their time investment and reduce perceived risk. Unfortunately, it doesn't work. It alienates the very candidates they want to attract while doing nothing to deter the unqualified and it isn't any more reliable at telling us who's qualified than the old method was.