Mo – You have it there, the thrust was redirected away from the wall plates and the tying joints, and perhaps completely negated, until the Tie fell away, (rot took it, a spot leak high in the roof, guessing water ran down the strut and sat in its mortise, the adjacent purlin post and its connection to the Tie and the Purlin Plate likely warrant close inspection, a resistance drill might be in order) when the Strut and Tie were lost, everything changed about the way the loads traveled through the frame. This dynamic changed again when the cables were placed.

And there are potentially, and more than likely, other things at play in there, which is why a trained eye should be brought in.