It’s just a setting like so many other things. You can put in individual IPs you trust or IP ranges.
It seems Plex has figured out lots of Plex ‘server admins’ are just normal Windows users and click OK on everything w/o reading any change logs or checking any settings. So it’s easier and saver to enable a lot of things right away. Admins can just go into settings and adjust it.
It’s not that they now changed something with data collection and sharing within the update. They always did it, all services free of charge do it and most that cost money likely take the extra money as well.
It’s now that they tell you in a short and informative way (1st sentence) and ask for your consent.
What’s really infuriating, are websites and services that have an “Accept All” button but no “Reject All”. Instead you have to manage individually and sometimes I have to flip 30 separate buttons to disable data sharing, where they even call advertisers a ‘necessary 3rd party’ requiring interaction on top.