Would the mislabeling impact which maps were selected as focus maps?

No. In Thousand Oaks, the Latino percentages of VAP and the Latino percentages of CVAP closely correlate. A neighborhood that has a relatively higher Latino percentage of VAP also will have a relatively higher Latino percentage of CVAP, so when reviewing how different maps impact different neighborhoods in Thousand Oaks, or when deciding whether or not to include a neighborhood in a given district, there is no practical difference between looking at VAP or CVAP data.