They were the 5th best NFC team last year and remain the 5th best NFC team in the rankings.
The AFC looks like it could be weak this year outside of its top 2-3 teams...but I could make a case for a few to be ranked over the Eagles.
I think the eagles benefitted tremendously from being in the nfc east. That more than anything helped them achieve that record. Put them in almost any other division and they miss the playoffs. I do not think they are the 8th best team in all of football nor the 5th best team in the nfc.