1. BYU's defensive performance under Tuiaki has been grossly misrepresented. That doesn't mean BYU has been lights out — it just doesn't mean it's been as bad as the amount of pissing and moaning would indicate.
2. The amount of complaining has gotten to the point where, if you never watched games and got 100% of your info from CB, it feels as if BYU just went something closer to 13-12 the past two years instead of 21-4. It just sucks the enjoyment out of a fairly historic 2 year run for the team.
It's not really about Tuiaki, IMO, it's more about the disproportionate complaining.