It is 2020 polling data for VA02, as intended.
This is the URL for the link you provided:
“https://www.realclearpolitics.com/epolls/2018/house/va/virginia_2nd_district_taylor_vs_luria-6498.html#polls";
Note “2018” in the link. And it shows the final results as well, which were the 2018 final results. Maybe you got the wrong link?