AWS already had a “reduced redundancy” product, though last time I looked it was basically the same price as normal storage.
And the “S-IA” thing in your table looks odd as it actually costs more than normal storage.
And doesn’t “IA” stand for “infrequent access”, which is a different dimension?
Some clarification would be good.
edit: it seems this new offering has reduced availability but the same durability as regular storage, while the reduced redundancy product (which has uncompetitive pricing, so seems deprecated) has reduced durability.)