I don’t see this as an issue. While the design of the game is certainly targeted towards simulating the flying portion, it’s hard to ignore a significant portion of sim communities look at the management portion as well.
In fact, this game quite literally sets the stage not for a single pilot flying in a career but a multi-billion dollar layered umbrella corporation across a broad range of industries within Aviation. They even track your fleet and locations of all the planes, “home bases”, and profit-loss statements per-company for all manageable streams of credits in or out.
If you look at most other sim games, people work very hard to establish their empires and let their employees handle most of the hard work while managing the high-level functions, like breaking into new markets or exiting out of stale ones. This would not necessarily be a bad thing for this game to implement especially when you consider the level of quality in the simulation itself.
The community behind flight simming will always get on to pilot their favorite planes. Contrast that with, say, Truck Sims where there’s a bigger casual audience, not much depth to the physics(comparatively speaking), significantly less graphical fidelity, among other shortcomings, and a lot of people just end up running a logistics company instead of hauling around cargo.
But you have to remember
This is a single player game mode that doesn’t affect you, so how other people choose to play is largely irrelevant provided you can change settings to tailor your experience. The same goes for sim rates, assists, pre-flights and more.
Edit: Considering this is a flight simulator, I would also add that maybe the career mode should allow you to be an ATC Controller as well. Because why not? If we’re talking about simulating flight why not just have everything? Let me go in the tower. The radar systems already work and traffic functions quite well in FS20, so it’s not off the realm of possibility.
Further more, why not be an aircraft mechanic? The dev’s said in one of the talk-shows that they have already programmed and simulated all of the mechanical engineering for the factory planes, down to fluid being pushed through hoses. The only reason you don’t see a hose come loose and spray fluid around for instance is because they, along with the aero manufacturers, decided that it should not be in the game. It’s simulated, you just don’t see it.