Toffee had his flesh graphically melted off to the bone and his skull crushed on-screen. If they wanted to kill Meteora I'm sure they would have been allowed to, maybe not in that exact context but with a similar method (the actual death being abstract/"censored" by the opaque spell).>>99821777
It wasn't too surprising as a reveal since you knew that's what happened as soon as you saw her clothes all bundled up in the crater.
I would have preferred Star be the one to finish Meteora off, but this direction they're taking Eclipsa might pay off. It's hard to say, because we don't know enough about Eclipsa's motives and what she plans to do going forward, nevermind her husband or Glossaryck. She and Glossaryck were obviously colluding on some level, but I really doubt she'd just been putting on an act the whole time, it just doesn't make sense with how we've seen her act the entire season beforehand. If she had just been planning to swipe the wand she could have done it a long time ago. Even if she has nothing but good intentions, the way she left Star felt extremely abrupt for someone who she's treated like a granddaughter up to that point. Obviously she had her real family to attend to, but it was still very sudden, giving the impression of "I got what I wanted, now I'm gonna scram before you change your mind."
I don't have a problem with Meteora getting babyfied instead of being killed off outright, but it bothers me that there wasn't really any obvious explanation as to why it happened. Eclipsa seemed like she genuinely thought she had just killed her daughter and "Black Velvet Inferno" sounds like a spell that would kill something very dead.
I like the theory that something similar to what happened to the apple in "Baby" happened to Meteora, but the show would usually make something like that obvious, like how the scene with Glossaryck leading Star on to Dip Down in "Toffee" is a recreation of the same scene in "My New Wand"