Yes, that has been the case for many years. If you purchase a drone in Canada (for example), you'll have to take it back to Canada to get any work done under warranty.
My understanding is that DJI's long-standing policy has always limited their warranty coverage to the country where the drone was originally purchased. I gleaned this from a couple of posts earlier in this discussion.
I am in Europe so available and plenty of tests coming out
One reputable tester stated the 4 is NOT as good as the Air3 / S in strong winds so will wait for more tests to see by how much
70% of my flying seems to be strong winds
DJI not releasing a Mac 4 Pro drone in the U.S. is giving them more publicity and creating more chatter than had they launched a drone here. Clever marketing.