Yes, the risk is still there, I agree, even if he was able to restore it, doesn't mean that will not collapse as what happen to Luna. An I'm not sure as well if they are really over overcollaterized. Maybe they have surplus of reserves, but can they stay that long specially in the worsening market conditions? Besides, I think Justin has lost the luster of being the "shill God" of crypto. Specially the public meltdown between him and CZ.
With how shady Justin Sun's actions are, I would steer clear from USDD as much as possible. The stablecoin is still driven by algorithms even though Justin Sun claims it to be "overcollaterized". This term may just be a marketing scheme to attract as much investors into the stablecoin itself. I can't imagine how big the market crash will be if USDD loses its peg for a long period of time. Investors will be so angry they'll probably ditch stablecoins altogether. Regulators need to weigh in on the industry to prevent another downfall of such magnitude.
With how bad things have turned out for algorithmic stablecoins, it seems to me that only truly collaterized stablecoins will survive. I'm fine with that as long as decentralized cryptocurrencies remain the leading force of the industry. Just my opinion