Allow Ops Review even if Event is still open

Now that we have Degraded (DGD) type it is common to have long running events - so the constraint of waiting until an event is closed before allowing ops reviews probably doesn't make sense anymore.   

<img width="952" height="901" alt="Image" src="https://github.com/user-attachments/assets/806add1a-4021-43c6-8964-b5af617c0300" />

**Reported by**: samari