Inflationary currencies aren't "stable".
Tokens based on the shitshow ETH are hardly "stable" either.
When ETH implodes -- and it will -- that experiment will end rather quickly, along with all the other shitcoins based on ERC20.
As for the fiat side, every government in the world is actively devaluing through debt issuance or outright Foreign Exchange policy - so that isn't going to help anyone either.
I think they sat around a conference table, saw that other shit-tokens like "Tether" were getting all the press, and they decided to get a piece of the pie.
Too late, its like launching a shopping website on the eve of the dot-com crash.