They never learn until they become the victim.
This is the sad truth. After Voyager collapsed, there were warnings everywhere to withdraw all your coins. And yet loads of people lost everything when Celsius collapsed a week later. And again when BlockFi collapsed. And again when FTX collapsed. And loads of people will still lose everything when Huobi or Kucoin or Binance or whoever collapse next.
Houbi's silence suggests an underlying issue, and if the reports are accurate, we may be facing yet another unfavorable market situation.
Whatever Huobi do or do not say is irrelevant. Every single one of the exchanges I just listed above were tweeting about how everything is FUD and fUnDs ArE sAfU in the days and hours leading up to their collapse. No exchange which is fractional reserve will ever come out and say "Yup, we are fractional reserve", because they know that doing so will trigger a bank run which will collapse them within hours. Ignore what is or is not being said and get your funds in to your own wallet before it is too late.