I think it depends on many things:
- how much protein you are eating to prevent muscle loss
- if you are strength training to maintain muscle mass
- duration and intensity of cardio
- how lean you are
I know that for "Stubborn Fat" areas on leaner individuals, fasted cardio is a great tool.
The article says that "without fuel to aid the workout, exercise intensity and overall calorie burn will be reduced" and I don't agree with that. I workout (cardio and/or weights) way better when I'm fasted. My energy levels are actually higher.
It's personal preference.