Nope. I meant that the current available character set already does a “decent” job. But if you want to improve that by adding more complex symbols just to increase the strength and entropy, fine.
But I guess Kyle didn’t place those characters in specific for a lazy reason, not at all.
I’m not here to talk whether passwords are stronger or not. I’d use http://xkpasswd.net as an example. If it could be based on that kind of generation, it would be fair for me.
Although the master password is not something I change frequently. Also because it requires some time and practicing to memorize and keep them in mind.