Why the hate for HR cams.

Maybe if you checked the valve lash more often than once a year....the whole point about checking valve lash frequently isn't because you have to it is all about catching a problem early.
I said nothing about the frequency of CHECKING lash. My point was lash adjustment, when the valvetrain is happy and geometry is correct, is not as frequent as people seem to think. And the failure above was caused by a broken valve spring on a cam/valvetrain that has over 300,000 miles on it.