I think anyone would have been able to see this potentially coming. Really similar to last summer with Kevin Love when other teams just had trump cards that the Cs didn't have like Golden State with Klay Thompson and Chicago with Nicola Mirotic before Cleveland came out with the Wiggins, the Ace.
Worse things could happen, but if it's a player who will take assets to acquire like Cousins, it at least takes up cap space for another potential suitor of the free agent crop. Glass half full, y'all.