Are people confusing the quality of a product with the shop that’s vending it?
I have seen negative threads and articles about Solana here in this forum, but also on other crypto related channels and websites way before all the stuff with the bankruptcy of FTX even happened. In those articles the people were mainly criticizing that Solana is a very centralized crypto project and that this centralization is against everything that crypto projects should stand for. It is the same with XRP, which is also heavily centralized.
I also think that Solana will have a hard time to prevail because there are other projects coming up, that are doing similar things like Solana. Aptos for example was listed recently. Of course Aptos also took a hefty hit because there also Alameda (FTX) was the biggest investor, but that was just an example of new projects coming up, that are competitors to Solana.