I know it's a natural side effect of everything good about the pilot definitely not being written by Viv, and series!Charlie being a supposedly "nice" character being written by a notably not nice person, but I really never got the sense that Series!Charlie gave a damn about the common sinner if they couldn't contribute toward helping her white savior-ass "fix" the demons.
The only time she actually cared about somebody's past was when HER girlfriend used to be an angel, and never told her despite that being a secret that could get her killed if she told the wrong people. She doesn't care about how many people Angel's probably given cement shoes, she got him to quit doing drugs so it's all fine.
Her ideas don't go any deeper than making the demons (who are all perfectly content to live in hell, they just don't like being murdered every year) act vaguely palatable in a Christian manner, there's no focusing on the inherent immorality of eternal punishment, no considerations of a purgatory or reincarnation, or making hell just fucking bigger which they can definitely do, holy shit, just do that, by all means, she acts like a sheltered, apathetic child inserting herself into everyone's lives until its made evident the heaven system is BROKE broke and sacrifices like Sir Pentious' are meaningless when nobody knows the criteria for getting into heaven.
Like the key difference is, if Pilot Charlie caught Alastor blatantly eating one of the inhabitants of the hotel, that would probably the last time anyone sees him alive, but if Series Charlie saw that happening, at worst she'd be kinda annoyed at the bad press. And that's not a bad concept for a character, but it's clearly not the one they were trying to go for, and constantly portraying her as all pure while ignoring her short-sighted and selfish tendencies makes them stick out way more and become hard to root for.
All of this. Pilot Charlie didn't have a spotless track record when it came to knowing what her subjects needed (read, throwing out an addict's pills) but she at least had a more selfless and more adult understanding of it than series Charlie. She paid Angel for his time the first time they met, said the right things, and didn't force everyone to sit around roleplaying Sunday School scenarios and playing clap games.