Ummmm....the actual forecasts were NOT for #Milton to "slowly weaken" upon entering the Gulf, but to maintain its strength before weakening due to shear just prior to landfall. Also, most of the forecasts did take warmer ocean temperatures into account and did forecast rapid intensification, though not to the extreme extent that actually occured.
The odds are still that Milton still does not hit as a Cat 5, more like a Cat 3.
Better to be safe than sorry, though.