They said heritability. They meant genetics.

Several people have told you that's not the case; don't assume other people's intents. Heritability is absolutely not congruent to genetics.

The genetic meaning is the most common usage of the word, which is evidenced by a Google search. It’s also the most obvious meaning when referring to racial minorities.

If they didn’t mean genetic, then they really screwed up in their use of language.