Wow, never thought I'd see molybdenum in this context. When I worked at a light-aircraft production plant, I saw molybdenum all over the place; from drill bits to grease. Some parts were made from alloys containing molybdenum. Anything that was on the outside of the aircraft, and needed to be high-strength usually contained molybdenum. MoS2 was also in a lot of the grease we used. It has an interesting failure condition. Even if you overheat it, a small coating remains, which can help extend the ability of the component to function well outside of normal parameters. This is a really good thing in aircraft.
One thing they didn't mention in the article is heat resistance. Mo is fare more heat tolerant. Far, far better than Si. I know there is a difference in melting point and the efficient transmission of electrons, but given the other qualities of Mo, I'd think we could push chips made from this material a little further.