When marlin added a safety to their design, it did not affect anything else, unlike a 94 that has a rebounding hammer which can sometimes lead to light hammer strikes. It still has a half cock. To me, its just an aesthetics thing on a Marlin and never let it keep me from buying one. Just my opinion of course. They make a neat saddle ring that pops in the safety hole and takes about 5 minutes to install ifn ya hate it that much.
As far as I know all 44 magnum levers in both 336 and 94 models had walnut stocks. The bullseye was only put into walnut at the factory.