Has Shoji Kawamori ever commented on Robotech? Harmony Gold infamously dubbed Macross as the first part of the Robotech saga. Character names, music, and some story elements were changed or removed completely. This has long been a matter of contention between the fans of both series, as well as having a lot of legal ramifications. 

But has the creator of Macross, Shoji Kawamori, ever commented on the existence of Robotech?
As per wiki : 


  Series writer/actor Greg Snegoff said in an interview on the now-defunct Shadow Chronicles News fansite that, "afterward, we received compliments from the Japanese who thought our dialogue and stories were better than the original". However, Animag magazine (issue 11) and Animerica magazine (issue 9, volume 4) reports that the staff of Macross at Studio Nue and Artland, such as the original story creator and mecha designer Shoji Kawamori and chief director Noboru Ishiguro, expressed their concern over the Robotech adaptation, and surprise at its differences.


So it seems that he raised concerns about the same, and acknowledged the presence of Robotech

Further can be noticed in the interview clip here