This is true for most good people at big companies. Your day is already 60 hours long, and your company forbids (via IP ownership) coding outside of work. I fear that most of the interview approaches pointed out in this thread select against people who are already successful at well-regarded companies. Don't you want people like this in your interview funnel?

Exactly. Furthermore my experience has been that requiring prior work samples unfairly biases towards younger developers. Our system is far from perfect but it allows us to see prior work where possible by provide a fallback when it isn't