And he'd be very interested in hearing about it! He'd be a bit wary if he heard what Maedhros had to say, but at the same time, it's sort of Maedhros' word against Melkor's. So, I can see Melkor still twisting the situation to his benefit.

(Also, while Edgeworth wouldn't admit it... dragons are pretty cool and he'd be more interested in them than he'd like to admit)