Come to think of it, before this whole FTX and Binance drama begins people already have it in mind that USDT will go to zero, some are speculating that USDT will bring the next bear market to crypto, instead it started with FTX and now the banks, other stable coins are the ones affected, no single touch on USDT. This is 
laughable.
It's a speculation but likely that it can happen if things got crumpled for Tether. With what happened to UST and Luna, the stablecoin that it has got went down to zero until there's a new launching of its new stable coin. While for Tether, it's been the most known crypto in terms of stable coins but anything can happen on it as the US dollars have been more in the circulation and there's still the issue for USDT that it have about printing issue as well. laughable.