Coming from the transmission industry I know for a FACT that Hard Annodizing is tougher. I have spent lots of time with coatings, tempering, and finishing. No I won't back your statement.
Also, it seems that the only reading I've seen on steel baskets is comparing them to the early Un hardened Mattoon baskets. Why not proven baskets like the PE/Magnum? Also, do the steel ones have oil grooves/passages to help cool the clutch?
And 2 pounds will make a difference for you. Although in a good way for your riding so that I can get behind. The inertia will keep that bike coming out of the tight stuff better. That is about the only benefit. Price wise for those steel baskets is rediculous. Yeah, it'll probably last, but it may expose some other issues.