One benefit is the time zone of Pitcairn is very close to North American Pacific time. Right now it's one hour earlier. Get your Starlink account and you're set.
It also seems like most people there grow their own food. That takes time when does for self-sufficiency.
And it looks like there is no property currently for sale along with limited rental options. You basically have to build your own house (with only supplies coming it every 3 months)
Solving the internet problem is only the tip of the iceberg for remote working there, there are easier locales to be a remote worker in with similar living costs but easier logistics.