Classification/Reversal

I have read many posts by type 2s that exclaim suprise or shock that their BG uncharacteristally rose from low 80s to mid 90s. Other posts relate how after eating some favorite restaurant fare their BG returned to the mid 80s in 2 hours. While I am envious of those BG numbers, I wonder at what point does the diagnosis as a type 2 become a prediabetic? Can’t the people with BG 75-95 claim they have reversed the type 2 diagnosis and barring a sustained increase in BG be re-classified as prediabetic?