As someone who works closely with DJI folks here in the U.S., I can promise you they have not left the US market "unprotected and in disarray". They are working very hard to get CBP to cease stopping shipments. DJI has answered every question and...
I do agree with you, but I will point out that the original Mavic Mini can detect the extra weight of the prop guards and imposes a lower max altitude.
Props to GadgetGuy, THANKYOU for your meticulous attention to detail. Your post has made me rethink purchasing an Air 3s. I now am considering a Mini 4 Pro. I think it's funny that you're using a more expensive piece of equipment than your Mini 5...