It’s a difficult situation. No matter what Sifu & Dani choose to do, some people will be unhappy.
If nobody is repaid, then the credibility of Wonderland will be permanently damaged. People were assured that buybacks would occur around the backing price and this is the second time this system has failed. If no effort is made to remedy this, then Sifu and Dani will never regain the trust of current and prospective frogs.
However, this does also send a message that people can freely leverage at the backing price and the treasury will have always their back - there are no consequences for what is otherwise considered a high risk move.
If reimbursement for liquidation is paid from the treasury funds, this negatively impacts the wMEMO holders who avoid leveraging. People who are more conservative in their strategy will be resentful for bailing out others who are willing to engage in risky behaviour. Wonderland could therefore lose the trust of many of it’s wMEMO holders.
The best solution that I can see is for Sifu and Dani to offer to reimburse those impacted from their own personal funds. That way people who feel that they were unfairly liquidated receive compensation and the non-leveraging wMEMO holders don’t feel as if they (or the wonderland treasury) will have to pay for the mistakes of others.
Whatever is decided, clearly Wonderland needs a concrete policy regarding what happens during this type of event. Of course, hopefully it never happens again.