Interesting discussion. Forgive me for injecting a bit of math into it.
That 6.3% number is a monthly churn for only November 2023. It's up from 5.1% a year ago, in November 2022. There's no information in the article about what's happened in the intervening months, but over a 12 month period -- for simplicity, let's ignore the fact that Nov-Nov is actually 13 months -- that's a 1.2% increase in the monthly rate for the year, about 0.1% per month.
Assuming the change was linear (which we don't know from the article), and we take the mid-point of May '23, that would be 5.7%. 68.4% for the entire year. A 68% churn is not sustainable for any subscription business over the long term.