It depends on your use case. The author first goes on talking generally about the rest of the drive being unusable, and only then mentions persistence. But Ventoy supports both, so either way the point is moot.
> Ventoy supports both, so either way the point is moot.
Again with this "some tool exists so the point is moot". The same kind of excuse for manufacturers to ship a crippled product. Ventoy is a very new tool, and no one puts a link to it next to their ISO's on the download page so to most people it's... moot.
Why do I need a special tool to enable persistence on my boot media? Imagine flashing an ISO on a thumb drive for the first time and find out it's readonly, wouldn't you be like "why?"
You don't need Ventoy to enable persistence. I'm pretty sure Rufus supports it as well, which is far more popular. Ventoy's main selling point is that you can put multiple ISOs and other files on the same USB.
Rufus doesn't, but that's not the point, I'm sure there are more than one tool out there that does it. But there should not be any tool. Linux distros should be packaged in such a way that you flash it with the default command that everyone has and you get a non-crippled OS.