The fundamental problem with CV is that it actually relies on AI stupidity to win, because a CV has so many elements that are dependent on cooperation with an Opponent. If an Opponent maintains long wars with you, you lose the diplomat bonus, open borders bonus, TR bonuses and bombs. And while you could attempt to sneak in musicians that is very risky notion.
No other VC is shut down so incredibly hard by a simple press of the declare war button. And I don't even have to fight, I don't have to lift a finger. Just maintaining long warring has a dramatic impact on a person's ability to CV.
Funny enough for me I find SV a more peaceful VC (or at least defensive warring) in many cases, because with various catchup mechanics I can often compete with the AI in science late game, and then go for the win. With a CV, unless the stars are aligning, I usually have to war with the culture leader....who smartly doesn't allow me to keep trading with them all the time. And without all of those bonuses and bombs, CV is not viable unless you turn the culture leader to dust. Until you can....until you get that weird game where the culture leader just becomes your buddy the whole time, allows open borders for nothing, and you get to weirdly sit back and win. Which of course makes no sense
It also still kills me that the whole point of tourism is to give your ETRs these nice extra bonuses....which we never use because your focusing all of your trade routes on the Civ you have the least amount of influence with. It would be nice to actually get the benefits from all of that tourism spend.
So that's a lot of ranting, I think overall my concern may be more to the fundamental nature of CV...that in my heart I think its a broken VC. Its less a condition you go for, and more a condition the AI either lets you have....or one you have to war for anyway.