How many times have we seen Coinbase go down when BTC takes a MASSIVE drop? Happens every time.
A real trustless DEX will never go down, as nodes keep it running 24/7. If one node goes down, another one takes over, it's that simple.
Blocknet's DEX has been running since it's launch with no down time. That's just one example, the same can be said about any other real DEX out there (saying real, because there's a lot of fake ones out there, NASH being one of them enforcing KYC, and GEO-blocking of users).
Agreed, people are claiming all longs already got liquidated as there was a price bug showing $0 but if this site is accurate looks like that wasn’t the case:
BitMex claims no liquidations will occur while the engine is offline: