(I have worked for a SpaceX customer. Unless you actually work for SpaceX or another SpaceX customer, I'm pretty certain I've more experience on this matter than you.)
You're right that the relationship between the launch provider and and customer is complex but not particularly collaborative. The GP point is simply that SpaceX doesn't build that complexity into their commercial pricing -- which is awesome. (Their pricing for government customers is much less transparent, precisely because the relationships are MUCH more complex and collaborative).
For Waymo or other LIDAR providers, the relationship with the customer is certainly NOT more inherently complex than the relationship between a launch provider and their customers. They're being opaque about pricing for strategic purposes, which I'll avoid speculating about, since they're also one of my company's customers...
You're trivializing the amount of work that has gone into both LIDARs and products integrating LIDARS.
I am aware that rocket science is hard. But we reached the moon before we developed pocket calculators. Fundamentally, the math behind rocket science can be done by hand. And was.
Despite RADAR being developed more than 70 years ago, LIDARs required technological breakthroughs in multiple fields of physical sciences to become viable, which is why they only began showing up in force within the past decade, and this is despite the obvious military applications driving military research for the past several decades.