My iOS accounts are, unfortunately limited to a password that I can remember but I use one with numbers and letters and a mixture of uppercase and lowercase characters.
Most of my website passwords are generated keys; each different - all stored within 1password, should there be an issue at any point (doubtful) I can always go through the "forgot password" features on any given website to reset it to something temporarily that I can use easily.
It's mainly for my laptop to be honest but as it's just a tap away why not secure my 1password vault more securely at the same time?
I also run software on my MacBook Pro so that when I pull the Yubikey it automatically engages the screensaver which in turn requires the password to disable.
This is only half of my password; the first part is a password I can remember easily with numbers and letters, the second is the generated key.
This means that even I don't really know my password and if someone found my Yubikey then it's useless to them without the other half that only I know.
(I do have a printout in a safe place of the key and also a backup Yubikey)
I use this password for my computer as well as my 1password vault which is generally filled with randomly generated keys for each website.
Might sound a bit overkill but if you can; why not?
I guess they're just finishing off the blog post/announcement before updating the main site.