So emphasizing the covenantal aspects is the connection to the Federal Visionists.
I wonder overall, how the FVers would view NT Wright as he subjugates Scripture to Second Temple writings.
1. It isn't "the covenantal aspects" that is the connection but more specifically, "covenantal nomism" that is a major foundation for the connection. Do NOT confuse Covenant Theology as it is historically held by Reformed Theology with their twisted and heretical view of the covenant.
2. N.T. Wright is the FV's "poster boy".

Without Sanders, Dunn and Wright, there would be no Federal Vision.
3. Just a strong reminder which I have repeated on this board countless times... Heretics of all flavors are infamous for redefining oft used theological terms but fail to make known the definition they have devised. For example, they will speak of "faith" but one would be very foolish to automatically
assume that they are referring to the biblical and historic understanding of faith. They have redefined many terms which deceive people who are unaware that their defintion of those terms are totally different.
That is one of the major reasons I recommended Venema's books and Eveson's book. They expose the deceit and refute their redefinitions.