The thing is, the original Libra vision of a basket-backed stablecoin was dead long before the association rebranded to Diem. Today, one could draw a comparison to tether (USDT) or US dollar coin (USDC) in that they are now backed by baskets of assets, though not baskets of currencies. They aren’t quite the same, but they are probably similar enough. The chief concerns were how the libra stablecoin might affect financial stability, how it might be used and whether users were protected. The same questions apply to stablecoins backed by baskets containing securities or other cryptocurrencies.
Source: https://www.coindesk.com/policy/2022/02/01/diem-may-be-gone-but-its-legacy-lives-on/