Yup. There are layers upon layers of messaging here. This is a handful of very rich people throwing shade at each other. In the past they used paintings and architecture to send coded insults. Now they use thier toy rockets.
Amazon/Jeff Bezos are investors in Rivian. They're developing electric delivery vehicles for Amazon.
NASA uses Model X to transport astronauts to the launch tower. And Amazon invested in Rivian so Bezos wants to feature that.
They should have driven there with four Rimac Nevera, one car per astronaut. Now THAT would have sent a message.