Summary - “Lack of sunspots” is in indication of conditions leading to cooling.
“Lack of sunspots is in indication of conditions leading to cooling.”
Lack of sunspots is an indication of a strong dipolar field that decreases sunspots. The stronger the dipolar field the colder it becomes. The same is true for earth.
The polarity reversal only happens in a weak dipolar field. It warms up during this period.