Is there any reason why she struggle at the start? I dont think any "towa incident" happen with her.
Chill vtubers just aren't that popular, there is a reason why Ina is the least subbed HoloEN member despite being arguably the most talented of the bunch. This kind of personality just isn't that suitable for memes and clips. Pekora used to act all cutesy and shy early on but her growth only happened after she assumed her current smug and aggressive personality. Current Pekora shouting "ORA ORA ORA", "KITERAAA" and "PEKO PEKO PEKO" while devising pranks and traps is way more suitable for clips and memes than the old shy Pekora.
I think that Flare would only have an explosive growth like Pekora if she assumed a different persona like Pekora did.
Pierrot hit the nail on the head - Flare doesn't have a larger-than-life, bombastic personality. That's exactly why some Vtubers will never be as popular as others (on paper). Loud, meme-able and/or clippable girls like Pekora, Rushia, or Marine, will always have a huge advantage over more chill, quaint ones like Choco, Roboco, or Aki.
A "persona switch" definitely isn't gonna happen though, sankisei has been around too long for that at this point, Pekora came out of her shell and became who she is today long before that invisible lock-in took place. Coco did much the same, it's amazing to go back and watch her speak and act so awkwardly when yonkisei was new.
Some personalities just don't catch the attention of the general masses as easily, but that's okay. They all have their loyal fanbases, numberfagging is dumb.
For whatever reason Towa and Aki's new original songs aren't posted to their own channels.
Here's Towa's:
That's because they want you to, y'know,
pay for them, lol.
But I do like how Cover supplies the songs to the IDOL PROJECT and/or Various Artists topics on YT. Kinda defeats the purpose of buying them but hey, whatever. I do it anyway to support.