If the FAA was more worried about Boeing's profits than passenger safety, why did they ground the plane in the first place? That action cost Boeing nine to ten figures in deferred revenues, R&D and manufacturing expenses and compensation to customers.
WHBM
It will be interesting to see what the JAA/CAA make of the first ones arriving in Europe (which appear to be the Thomsonfly ones, with the BA order following shortly afterwards).
LOT has been operating the 787 within the EU since November of 2012 and I have not heard EASA is planning to require LOT (or any other EU registered operator of the 787) to do anything additional to their modified planes before they are allowed to resume service.
LOT had not planned to relaunch 787 services until October, but they now have said they will resume operations in the summer so they appear to feel they're cleared to go on a regulatory basis.