Throwing it to Royal isn't a problem, it's a problem when he screws up, which he didn't do today. Royal had a good game, led the team with 5 catches and 70 yards, and he made zero mistakes out there as a pass catcher (blew a couple blocks). How exactly is that a "problem"?
Then again, Fine looks like he has very good hands and the speed to get open often. I didn't see much of his blocking, but I'm pretty sure it's not considered a strong suit.