Greg...
all of those statements are true.. when based on a car such as yours.
Can those be applied as equally to a stock 2.5? the car WILL suffer drivability issues.. it WILL suffer performance issues.. it WILL be a pain to drive.
Absent-mindedly yanking them out based solely on flutter, etc (that you pointed out) will net 99.9% of the users on CEG nothing.. and will make them lose something, as well.
Blanket statements (that are true) may sound really good, but I wanted to include information that would be relevant to those particular users as well, not just information that would be accurate for those in your state of tune.