Note that the survey included owners who purchased between 2012 and 2018. The article doesn't specify, but it's possible that the 20% who switched were weighted

Note that the survey included owners who purchased between 2012 and 2018. The article doesn't specify, but it's possible that the 20% who switched were weighted towards early adopters who purchased in the first few years of the survey window. It would be interesting to see whether that switch-back rate is declining over time, and whether the decline is accelerating. I would bet yes on both.