Hi Robert,
I understand the argument against single field FNOs, and I feel for the pilots last night that encountered heavy delays.
The change was made last year to allow single fields after consultation with facilities. I think it is important to note that there have been around 10 single field/facility FNOs in 2023, and most of those have not seen delays of more than 30 minutes. These types of FNOs are doable post-COVID, and I do not think one night of severe delays should cause us to rethink everything.
There were flaws in the planning and execution of this event, not talking about controller performance, and we have debriefed those flaws and will fix them for the future.