That guy is being delusional, unless:

1) You guys are making steady money with your music, and you may risk leaking your new materials to competitors.
2) You guys are those we call 'artists', and such exposure may lead to big rumors of your new materials, hence leaking the secret of your new album to your fans.
3) He owns the label, and you have signed a contract which prevents you from exposing your materials to the public.

If none of the above is correct, he probably is delusional. He might think:
1) Holy sheet, Rotary7 has just uploaded a video! He will become more popular than me!
2) Holy crab, Rotary7 will be noticed by other bands. They will take him away!
3) Holy fark, Rotary7 might get our fans confused of his music direction!

He can shove the code of ethic right in the back door. Poyo je lebih!