The spread curve is compressed enough -- you're talking about five basis points difference in the overall spread between two-year and seven-, eight or nine-year agencies, and a very flat Treasury curve, there's no reason to extend out for rates or spreads.
People make too much out of whether we're inverted or not. It's as if when we're positive by a couple of basis points, everything is OK, but if we're negative by a basis point, somehow the laws of nature have been violated. The reality of it is the curve is just flat.