The thing is Linus does know what he is talking about; and can separate the performance concerns, from functionality, etc. I think the real point of the message is to change dbus not the kernel to address the performance issues.
But if someone without the proper technical understanding looks at the just the pull quote, they might think it is a lost cause or not worth using.
But if someone without the proper technical understanding looks at the just the pull quote, they might think it is a lost cause or not worth using.