Your friend is on the lowed end of the range, especially GPA. DL usually has a strict "4.0 or GTFO" policy. Also a sigle traffic citation at any time, even parking, is usually a no go. But if he aces the interview he has a chance I suppose. I knew someone who got on with a 3.9 GPA but it was in engineering from a really tough school and he was putting himself through mopping floors Good Will Hunting style. He still had to dance his way out of that one in the interview though. They actually don't hire that many astronauts though, because believe it or not they are considered somewhat untrainable know it alls by that point. So its a very fine line, which is why they only find a few pilots a year that meet their stringent requirements.

For real though, DL isn't really that much harder than anywhere else to get a chance with. They only just now started hiring what is going to be many, many thousands of pilots after essentially not hiring for more than one 2 year blip and another 3 month blip out of the last 13 years. That's a pretty big bottle neck and its going to take several months to clear out, but we're seeing it already.

Many, many thousands of applicants will be interviewed and hired with no where near the numbers you posted. It just started, and most of the "hiring" this early on has been flows and furlough recalls and the extremely well connected who have been stuck in the bottle neck. Its about to open up big time.