I can't agree with this. You can't assume if there will be no old users of FTX to use the new FTX. Even if the probability is very small but there will be old user that will be using the new FTX if it will be revived again.
FTX has so many loyal users in the past. It makes sense if some of them will be back again to use new FTX if it will be revived again.
And where have all these previously loyal FTX users gone? All these former loyal users are now trading on various exchanges that are not inferior to FTX in any way, but on which there is no stigma of fraud. But of course, there will definitely be those who suffer from nostalgia for FTX, but there will be few of them.