That statement is true for the users that both bought and didn't buy a Macbook (with Linux support). The difference is, the one who bought has paid money for the Macbook.
I am not an Apple user. Do you _have_ to pay for iCloud if you buy the laptop? I don't think so.
When they switched to x86, it didn't take long for them to release Boot Camp, so they could take Windows users' money, too.