Your route has the plane flying very close to Russian airspace from Istanbul to Baku. Also, it has the flight going over North Korean airspace at the end. Avoid

Your route has the plane flying very close to Russian airspace from Istanbul to Baku. Also, it has the flight going over North Korean airspace at the end. Avoiding these two would be required. While it would add too many extra miles, it does illustrate the point that these route planners are not trivial.