That is true, but gives no indication of how many Director candidates they have to go through as Google has "a lot* of L5s. I would expect the C-Suite to get the high-touch approach, as they probably screen less than a dozen interviewees for CxO.
Let's ballpark this (simplified). Say there's a 1:3 manager to L5 ratio, and 1:5 director to manager ratio. We'd roughly expect 1 director to be hired for every 15 L5s. If Google hires 1500 L5s a year, then it would hire 100 corresponding directors. If it averages 20 applicants per post, that's about 2000 screens per year. Would that justify getting specialized recruiters? I don't know
Aside: this used to be the kind of "estimate/puzzle" question Google used to ask it's interviews, allegedly
