That's a common request for manually-created mosaics. Those are often used in flight simulation software. They want all planes manually photoshopped out of airports because they don't want you to look like you're running into another plane when landing/etc. It's a surprisingly big business for flight training. Google is probably sourcing from some of those.

By "we" I mean my company and my product does not do that. That part holds. (or, well, more precisely, that's a different product that I don't work on and isn't marketed as "imagery")

But yes, some other mosaic products are specifically requested with planes photoshopped out of airports and all waterbodies a consistent artificial color so that sunglint can be automatically simulated in flight sims for training pilots.

Because that data is often a high quality dataset available for purchase, sometimes google/etc reuses those datasets.