I am surprised by the heading "Climate models can't explain 2023's huge heat anomaly". I don't think any climate center would claim they can predict climate anomaly for the next year with good skill. We have good predictability for weather over about 5-7 days and for climate change on multi-decadal timescales. That is about it.
I am surprised to see statements to the effect that climate models cannot predict next season's rainfall correctly or next year's temperature. We can and should try to improve predictability on seasonal, annual, and decadal timescales. However, there is no basis for good skill on these timescales....