It was a money grab as usual. Reminds me of Arrow releasing limited blu-ray editions, then releasing the same exact editions about a year later with 4K. It happens a lot with different studios/retailers.
Arrow Video 4K UHD releases have been 3 to 4 years after Blu-ray Limited Edition releases
not 1 year later
Most have been 3 years later in regards to Arrow Video Blu-ray Limited Edition and 4K UHD Limited Edition
Examples
Robocop and American Werewolf in London Blu-ray Limited Editions was in 2019
Those 4K UHD limited edition releases was in 2022 as in 3 years after the Blu-ray limited editions
Donnie Darko was 4 years later
Blu-ray Limited Edition in 2017
4K UHD limited edition in 2021
This is the first time Indiana Jones films have got individual releases as separate 4K UHD steelbooks
Previous 4K UHD release was a 4K UHD Box Set with 4 films
The previous 4K UHD release in 2021 was 4 steelbooks in a Box Set of all 4 Indiana Jones Films not separate steelbook releases in 4K UHD
You had to purchase a Box Set
The previous UK separate individual Blu-ray Indiana Jones steelbooks releases was in 2014 (8 years ago)
USA only had raiders of lost ark individual as a individual Blu-ray steelbook in 2015 a best buy exclusive
The other USA blu-ray steelbook release in 2019 was all 4 films in a single steelbook a Walmart exclusive
A 4K UHD Steelbooks Box Set with 4 films and a separate 4K UHD steelbook that is just 1 film release not the same thing
France previously only had Indiana Jones 4K UHD Box Set with 4 steelbooks in 2021
2012 France Blu-ray Box set with all 4 films was a metal tin with digipack inside not a steelbook as such
This is the first time in France you could get individual separate steelbooks for Indiana Jones films as the previous Blu-ray and 4K UHD releases was Box Sets with all 4 Films