I'm not sure what Eli is doing this year, or why the OP used Eli as the comparison.
But anyone who thinks taking Moss out of the picture is not going to somewhat negatively affect Brady's STATS is kidding themselves.
Moss is responsible for 20% of Brady's yardage and 33% of his TDs this year. And that's with Brady basically not using him at all in Week 4.
How much of an impact really depends on Tate and Hernandez.
From an FF perspective, Brady take a hit with the loss of Moss, no one can really honestly argue that. But I'm not surprised that some are trying to.
Not sure where you get that math. Moss has 139 receiving yards this season. Brady has 911 yards passing. Turns out that's only 15%.Between 07 and 09 (two years they played together), Moss accounted for 30% of Brady's passing yards. Even with the drop-off in production from Moss, Brady is still hitting top flight numbers for completion percentage (69.7%) and YPA (7.5).
I do agree on the TD part. It would be surprising to me if Brady didn't regress some in the TD department , with or without Moss. His current rate of 1 TD per every 13.5 attempts is second in the league (behind Sanchez) and better than his career of average of 1 TD per every 18.5 attempts. Law of averages says that will normalize over 16 games.
The bottom line is that Brady isn't going to put up gaudy yardage stats if he's in the bottom half of the league in attempts. If he throws it 480 times, expect 3600/25 numbers; if he throw it 550 times, expect 4000/30.
Look at Aaron Rodgers; he's on pace for 3700 yards passing; why? Because like Brady, he's only thrown the ball 122 times in four games.
Contrary to the OPs prediction that Brady - Moss = Eli, the reality is more like Brady - Attempts (regardless of Moss) = Eli.