Context and audience is important. So are image and profile, particularly when considering marketing and promotion to key stakeholders, creating an identity to attract and retain interest in the specialty, and educating both internally (to other PT who have misconceptions of cardio PT) and externally to those who probably have no idea that 'cardio' physio even exists.
I too thought that this would be an issue that would go around and around with countless opinions, options, arguments etc and never be resolved; however the reality is that in any forum (not just here) there has been a lack of discussion (?apathy, ?disinterest) or input. Creation of a profile and promotional package requires money to be invested, which requires ownership to drive such a process.