Why would anyone ever want to keep using centralized exchanges, especially when their volume becomes irrelevant?
Because many thinks that playing along a centralized exchange is the norm in this business.
Why would anyone voluntarily send their funds to a wallet on a vulnerable exchange where they don't own the keys and their funds could be frozen at the drop of a hat?
Again, the media has something to do with it, centralized exchanges has big budget to push their agenda by using social media platforms, crypto related websites. And people actually fall for it.
I think the days of centralized figureheads acting as gatekeepers are numbered.
No, people will still go for centralize exchanges despite reports of hacks, and exit scams. DEX will still exist but they don't need the needed support though, let people discover them so it's going to be 50/50, there are people that are confident on using centralized exchanges like Binance and on the other hand, there are groups who prefers DEX. But the beauty of it, they can co-exist in the ecosystem.