Given that the grandparent is presumably Ben Einstein of Bolt VC, an early investor in SpinLaunch, it sounds safe to say it's not using maglev at all. They say the catapult will be a centrifuge spinning inside a vacuum.
This article is pretty misleading. Amazon contracts a 3rd party logistics provider (who owns the aircraft). They've already been doing this for years. Only difference now is the plane is painted. A bit click-baity if you ask me.
