Lol the answers in this new interview are a bit more casual:

https://www.gematsu.com/2020/08/fina...rview-part-one

Cloud’s mother and Tifa’s father weren’t given names in the original Final Fantasy VII, but how about in Final Fantasy VII Remake?
Toriyama: “They both had names in the original Final Fantasy VII character design documents, so we decided to use them in Final Fantasy VII Remake. Now Cloud’s mother is officially named Claudia and Tifa’s father is Brian. Tifa’s dad, however, has no dialogue in Final Fantasy VII Remake, so during development we referred to him as ‘dead body.'”