Elon Musk's 'antiquated' views on working from home threatens Tesla
businessinsider.com
businessinsider.com
MAGMA, and the industry in general, produces software. Software doesn’t care about its location, and you can “touch” the product you’re working on from home.
Tesla produces cars. I can see a strong argument for Tesla workers getting benefit from being near the (physical) product. This may not be true of, say, the finance people, but I think it’s safe to say Elon is not very interested in the non-technical sides of his businesses.
At the same time there's even some things in MAGMA companies that can not be done from home. If one is working in a datacenter to fix hosts which broke down, then it's simply not possible to the same from home.