>>103041562I'm not that anon, but it's kind of lame or at least just doesn't make much of an impact because Eclipsa literally lived so far apart from Star and Moon and anyone the audience likely cares about (meaning: not Meteora, probably) that who even gives a fuck they're not related. They were barely related in the first place.
There were like 10 queens related to Star that ruled Mewni for over 300 years. The number of queens from the "fake" bloodline could have outnumbered those from the "real" one by that point.
Now if Eclipsa was maybe Star's great-grandmother, that could've worked better. They're a little moe closely related, the baby swap happened relatively recently. In fact I'm not really sure why it was necessary for them to make Eclipsa 300+ years apart from everyone at all. Heinous easily looked grandmother-age before it was revealed she was stealing youth for centuries, and that's still enough time for Eclipsa to have developed the reputtation she has. Comet could've been the "peasant" instead of Festivia.