Its a matter of concern to those who haven't done what you have done...gone and done it!

Me, I leave my grass high....as high as a normal cut I do for the last mowing of the season. I haven't had any problems...but then, I don't have any problems to speak of in the spring and summer so I go with what works for me.
Its evidently worked for you what you do.

Extremes of temperature I think is what causes problems. Where the lawn is cut very low, it can dry out more easily where sun and loss of normal moisture levels are low.
Normal northern winters result in freeze/thaw/freeze/thaw cycles that can cause eruption of soil where moisture levels in the soil affects it.
Last winter----if we can call it that--we had temperatures with extremes unlike other years. Temperatures in the 70's when normally they should be way way down below the freezing mark, and maintained for many days, did cause many problems--buds broke--and then died when normal temperatures returned. I'm sure some lawns reacted none too well. Any subsoil temperatures rose and then they too froze when temperatures returned to normal.

I think you will find many pros and cons to both sides of the question.