You're right. It's never unfair to demand something. wrong choice of words from me. what i'm saying is, you can't really blame them. i'm sure they put in a lot of marketing research into it, and the numbers showed that that's what majority of the young fans wanted. I don't think it's an insult; it's just what the numbers told them to do. if the producers' premise is wrong (that young otaku are looking for the cheap ecchi and moe stuff), then the stuff won't sell, and it'll die a natural death.
And i agree, the classics became classics because they were well written and thought out. but they came out circa 80's, during a different time. i don't know if the formula would work in this particular time period. if there was no macross in 1982, and it was only aired in 2000s, would it have the same effect on the industry? would kids at our age at the time we first watched macross also love it as much? would it have as many die-hard fans around the world? 25 years down the line, would it have those same fans still pining for it, putting up a forum, buying merchandise and waiting for the next macross product? I don't know. i'm not arguing that it will, i'm not arguing that it won't. i really don't know.
it worked for Gurren, but who did it really appeal to? did it appeal to old-school mecha fans? yes. did it also appeal to the young fans? i don't know. i don't have the demographics data. and besides, gurren also has its fair share of fan service, so i don't know if i should have used it as an example in the first place.