Yes... logically that would be the start of things taking off.
Arthur was a bit reticent in that interview, especially at the very start and it felt like an interrogation... trying to get him to elaborate and describe events.
He can't have said anything after that bit about Atlantic - from memory the phone went and he disappeared for a minute. When he came back the interview was done.
At the end he states "when the Atlantic record thing was being.... we died" did he ever tell you more about how / why that happened Graham? You would think getting a song out nationally would have helped?