What more do you want though? People enjoy flying fast jets in real life for purely recreational purposes. Sure its not study level (and isn’t being sold as such) but to be fair I don’t think any plane is FS2020 is study level.
Assetto Corsa is a car racing simulator. There is no reason to want to ride a bike in a car racing simulator. FS2020 is a flying simulator therefore it makes sense you’d want to enjoy flying an aeroplane in it.