Here's what I understood in what Parkerized posted: (Note: he said
light aluminum. The most important word in interpreting his statement)
"If it's going to be a such a light-weight scope, reducing weight by using thin (light) aluminum, will obviously make it more susceptible to damage and impacts. Now if they would have upped the anti by going with some other stronger-for-weight tube metal (titanium), then it could be an exciting development."
Now I'm not aware that anyone makes titanium tube scopes.