The fall of cryptocurrency exchange of such magnitude is not good for cryptocurrency world as it generates and spreads FUD about crypto. This will bring a setback to acceptability cryptocurrency is currently enjoying. And the new individuals who are yet to be in crypto might lose interest in it.
I think you are wrong, because scam exchanges are unlikely to affect the credibility of cryptocurrencies. Creating different pyramid schemes cannot affect the trust in the money in your bank account, it is the same with crypto. FTX scam has certainly impacted the price and will probably do so again if any new details come to light, but it won't affect the credibility of crypto in any way.