You know, I'm starting to wonder if they write the songs first before the scripts. That would explain so much if that was the case.
Dude, that's so fucking obvious. The pilot wanted to make it clear that singing was something that's special to Charlie, and to her, a means to convey thoughts and emotions, with Vaggie trying to bring her back to reality.
And guess what was the reaction people gave her when she tried doing exactly that even when Vaggie told her not to?
That's why she was so mesmerized by Alastor's Reprise because Alastor was the only other person in the pilot to share her musical enthusiasm.
They try to recreate Charlie and Vaggie's banter in "Overture" but it doesn't work because:
1. Vaggie says it quietly and more to herself as Charlie had already started singing.
2. Charlie spends most of "Happy Day In Hell" singing to herself then to the Sinners.
3. When she DOES sing directly to another character, you know what she's responded with?
A song.
Singing isn't that unique of a character trait to Charlie anymore seeing how EVERYONE is doing it.
It's even more appalling when in the original episode outline, a good amount of these characters who sang in the show were either in the comics or not in the season at all.
Hell, the original version of "Masquerade" has it where instead of singing, Angel and Husk talk it out the whole way through.
But after getting all these Broadway actors for Helluva Boss, especially replacing Brock with one, Viv decided to make Hazbin a full fledged musical and have all the characters sing, regardless how little the songs made sense or matter, as that's apparently more important than telling a coherent story.
And of course, she tries to act like this was
always the plan, and undermines the pilot VAs since "not everyone was a singer" or "the singers didn't match the voices". First of all, Stephanie's singing makes Vaggie sound like a completely different character. More importantly, dafuq? The pilot was an open casting. Only Charlie and Alastor required singing talent, and from I recall, you barely talked about potential musical numbers in the show prior to A24 picking Hazbin up.