Some of that is easily explainable as just the ancient corporate mistake of seeing and paying recruiters as a commission-based sales force. They have vacations to pay for and sales quotas to meet and the easiest way to do that is volume over substance.

But yeah, anecdotally, I also came away with the impression that FAANG/GAFAM/whatever has certainly had some incredible years where their recruiters went above and beyond "this seems like a volume play in their personal rolodex" to "this company seems thirsty for headcount with no real idea what it needs the headcount for and no time to get to know the actual skills of the person being recruited".