MSFS is a game. It's no inspiration for any professional simulator and it is not promoting any unheard of breakthrough technologies that professional simulators are not aware of. Instructing using certified standards is quite different from the entertainment side of things. Professional simulation is looking for entirely different priorities compared to games. Especially eye candy is almost non relevant. But very precise data and technical systems backgrounds very much are.
Very simple simulators can be efficient training devices. Just look at the Link trainer and how it trained thousands of IFR pilots in WW2.