It isn't the fault of the FAA. Michael Brown from the FAA is working on the BASA and states,
'While there have been some initial discussions regarding the expansion of the agreement to include commercial and ATP licenses/certificates, there has been no formal proposal on this course of action. Should EASA opt to expand the agreement, I’m sure the FAA would respond favorably, and work toward that end would commence right away. That said, my guess would be that it would take an additional year (at least) to formalize such an agreement.'
As stated the latest delay to April 2017 applies to all third country licence holders involved in non commercial operations