That sounds reasonable, but I've no plans to watch Macross Frontier. There may well be more to it than J-pop idol singers, but that would be a significant element of the show that I don't care for. Don't care for harem leads either, apart from Kamijou Touma and similar mock-cynical motor-mouths. I guess Kazu-kun would have more to say about Frontier if you wanted to discuss it.
I didn't want to hijack the Izetta thread with too much Macross discussion, but wanted to say a few further things on characterization in Frontier.
Spoiler:
Looking at Alto's actions in the lead up to the final episode of Frontier, I think he actually did make a choice with regards to the love triangle -a choice that was later confirmed by the movie version of the story. I'm actually critical of the decision not to explicitly settle the love triangle in the TV version. It might have made sense from a commercial perspective, but I feel it kind of undermined Alto's character growth (he seemed to be making progress on some of his issues in the lead up to the finale) by making him seem like a wishy washy harem lead. Yeah, maybe his behaviour in the finale was in line with his character, but I think they could have made his choice clear if they'd really wanted to.
On the other hand, I also feel that that was merely one of many creative decisions that was made for series (albeit an important one), so I don't dismiss the entire series as poorly written just because of it.
I actually feel that the "love triangle" aspect of Frontier's is sometimes overemphasized. Music, mecha, and love triangles are the traditional core elements of Macross. However, there's more to the relationships between the three leads in Frontier than just a love triangle.
One other thing I wanted to note about Macross -Shoji Kawamori (the main creative force behind the franchise) has stated that he considers the various Macross series in universe historical fiction. He's compared them to WWII movies and period dramas featuring interpretations of real life historical figures.