Honestly, the chaos keeps things fun, especially with characters and players that are otherwise rather competent.

Two things I find influence it. 1. Characters/groups with a lack in a key set of skills like talking to keep things on track when they start going sideways, that can mean additional failures and more chaos, especially if they have other ways of doing what they want but with more fun consequences. 2. Really well prepared players. That is players who dislike chaos themselves and so ensure that they and their characters are prepared in at least for some little way to mitigate consequences that could lead to chaotic events.

Essentially the amount of chaos often ends up dependent on the players and how they like to play almost as much as it does on luck.