Yeah it was a good decision.
This has happened repeatedly, with US Commuter carriers ordering large fleets and then dumping them. First it was 19-seat turboprops, then they dropped those and restocked with 35-50 seaters, then they dumped all those for the RJs. I just wonder if the same will happen with the larger Embraers.
The 190 should be immune from this 'dumping' due to it's size, it's more of a 737 alternative (smaller ones that is).