Why offer it at all then? At least in Europe the GDPR requires direct transfer of your data to a competitor where technically possible.
Regarding Liechtenstein, it is (along with Iceland, Norway, and Switzerland) part of the European Single Market [1] via trade agreements with the EU, so it's possible that it was trivial to adapt whatever contract they were using in the EU to cover them as well. I don't think it's a coincidence that all 4 are on the list -- but again, this is just a guess.
Pretty much all Apple services roll out in phases. From MacWorld Magazine (last year):
> As part of its staggered roll-out, the iPhone 11 launched in a total of 30 countries simultaneously on 20 September 2019. Customers in Israel had to wait another six days; and then the day after that, another 28 countries were added to the list.
When Steve Jobs introduced new products / services, he would have a slide for the first countries in line, then another slide of the next group. Here's an example:
https://i.pinimg.com/originals/52/fa/e1/52fae1ce1b1da1e01341...
This isn't Apple ignoring or favoring anyone. It's Apple starting with what they've got so far.
No it isn't, which is why Apple specifically calls it out when they also have an entry for "the European Union". Economic Area, yes, Union, no. And Switzerland is part of neither and has their own data regulation separate from the GDPR.