Where is your source that TikTok makes up the view counts. As a developer myself, their interest graph is second to none. It has by far the best recommendation algorithm in the social media space to date. Of course they are doing it with all the data they collect, but it doesn't bother me because it shows me endless amounts of the type of content I want to see, which is not half-naked dancing teens, but lots of political commentary and real life stories.
I'm pretty sure the initial restore from iCloud when setting up a brand new device gives you the option to pull down everything or transfer stuff stored on the other device locally if you still have the old device nearby. If you restore from an iCloud backup later, you can't get other stuff, just the stuff in iCloud.
The one thing they failed to mention in this press release was pricing. All the competing dating apps are so expensive. If this is free, that's a game changer!