Well most in the market are now on the other side of that bet but even argument's sake and say it is true, there is a fairly good chance that the bond you buy today will be better than the one n months from now because the consensus was wrong (ie, economy slowed, fed cut, some unexpected headwinds, etc).

This is no different than sitting on the sidelines trying to get into a stock at the perfect point or waiting on 'the inevitable sell off'. Maybe it happens, happy days. Maybe it doesn't, very sad days.