It's not that simple though
Chun-Li is a Spirit that can be upgraded. We've seen that while some Spirits are weak when you fight them, some could upgrade to 4 star after upgrading. Skull Kid is an example of this
List of spirits (The Legend of Zelda series) - SmashWiki, the Super Smash Bros. wiki (ssbwiki.com)
Chun-Li however only upgrades to 3 Star. It's also weird she's 2 Star in the first place. at the least I imagine her to be 3 star at base, especially when characters like Sakura and Cammy (Who are notable characters, but are not as much as Chun) is a 3 star battle
List of spirits (Street Fighter series) - SmashWiki, the Super Smash Bros. wiki (ssbwiki.com)
What I've noticed is that alot of the more prominent characters, or the characters that would get picked first if their franchise were to get another rep, typically have 4 stars or somewhere around there. Now I don't think it's the same for every franchise, but I got to look at the fact that Chun-Li can't even upgrade to 4 star, While Akuma, Bison, and Guile are 4 star
And I don't post this to put disrespect on Chun-Li's name. I agree she probably has the most merit of all the Street Fighter characters to be in Smash, But I think people also have to know that she isn't the only option. Characters like Bison and Akuma have merit to be included before Chun-Li, just like how Shadow & Knuckles have merit to be the 2nd Sonic character over Eggman and Tails, despite what alot of people might say