MSFS never had anything like this, except the flightschool from FS98 on and the missions in fsx. I think the sim doesn’t has something like this because simulating the whole world, aerodynamics and aircraft systems plus weather and atc etc. is a giant task on its own, any kind of gameplay would be a waste of resources, and would in my opinion miss the purpose of a flightsimulator.
You would not ask lookheed martin to introduce gameplay elements into prepar3d eighter, in case of prepar3d you aren’t even allowed to use it for entertainment purposes (only for education) if you take the license agreement seriously, although it’s shares a big part of the userbase with MSFS.