That means they are really struggling to find stock... from anywhere in the world that isn't America.
If it is still available from Amazon America and people don't want to miss out, it is probably safest to pay a little more to secure it.

It might suck for those who have the pre-order guarantee of forty-something dollars for the Australian listing, but at the moment the American stock is just $4 more than the current Australian price of $53... which is pretty good considering the extra distance it has to ship.

American stock $57 - still available now:
https://www.amazon.com.au/Transforme...dp/B09TTM3GSV/

Australian stock $53 - could be out in March... or never:
https://www.amazon.com.au/TRA-GEN-Wr...dp/B09H1CGTLW/