Self-employed Sick Leave for COVID 2021

My mother-in-law got COVID in July 2021, and we took a weekend off from our self-employment to go help care for her, as she lives alone. I am looking at the Self-Employed COVID sick leave help box in TurboTax 2021, and it says:

 

"All time off must meet the following requirements:
* It must be measured in whole days.
* It must have been taken on or after April 1, 2020 and not after December 31, 2020."

 

Is that end date correct? Does the self-employed COVID sick leave not count if it occurred in 2021?