For an aluminum bike, you are darn skippy Klein is a standard, model and guide.
Can an aluminum bike be a standard, model or guide for all bikes? Absolutely. Unless of course one has the silly steel is real bias. Then no.
I believe Klein has its place in the history of modern bicycles. Klein did pioneer the use of Aluminium in modern road & mountain bikes in the late 1970's and proved AL is a great material for frames.