No they can’t. Not in 10 years. Not in 20. You must understand that there are actually way more people working on this than just the Asobo developers/managers/artists.
There is the Azure cloud infrastructure for one, and I am pretty sure that they are working closely with Asobo. But sure, let’s assume that the Azure platform is available to anyone (with enough financial resources), so we can as well not count them in.
But then there’s still the Bing team that provides valuable data to the MSFS team (satellite images, mesh data, geographical data, …).
Not to mention all the third-party providers: Blackshark AI first and foremost, as they provided an essential part to re-generate our planet, but also not to forget the third-party providers that provide all the 3d assets, “clean up” many of the 36’000+ airports in the game etc. etc.
That’s not a 10 man job, believe me.