I'm not an Apple person, but this makes perfect sense to me. I think it was Steve Jobs himself who talked about the iPod "halo effect", which was the idea that if they could sell you an iPod because it was cool (and it was), and they made the iPod experience on PC worse than on the Mac (which it was initially), then people were more likely to buy a Mac as their next machine. If they didn't, they got FOMO, because they already bought the iPod and obviously want the best experience out of it. (That's an oversimplification and not sure it was Jobs, but the gist is there).

Now the Apple ecosystem is designed so that every Apple product is pretty tightly integrated with every other one. Unless you have some deeper reason to get away from it (privacy concerns, cost, lack of features, customizability, etc), there isn't a reason at all to leave.