Macross 7 was way too long, took forever to get to the point, had uninteresting fights, largely so-so animation, and a fucking annoying main character.
"oh hai, everyone's dying, I'm gonna sing."
And the plot was ass and full of retcon bullshit. The Zentradi were shocked by music because they had never seen (or heard) it before, it was culture shock, not because the music had magical powers. When they started strapping giant speakers to the fights in Macross 7, I basically gave up all hope for the show.
And don't get me started on the OAV. It had furries and space whales. SPACE WHALES.