I need schooling - old vs. new engines
Kind of a generalization. And you forgot to throw out that the pre-Eagle 5.7 has a tendency to drop valve seats if overheated.
But just like the "cracked Magnum head" straw man, it doesn't happen to every motor.
And there is evidence to suggest that the lifter issue isn't so much a design problem as low oil pressure at idle and long periods of idling.
