I sure would like to dump all of my passwords. I had always been told that the biggest risk of having so many passwords is password reuse. ie If the password for an inconsequential service is stolen it can be used to access more important accounts.
In 2009 or so I had 4 I would use and I had two more that I used only for my Gmail and my bank.
Two or three years ago I got tired of it and now I use three, one for Gmail, one for the bank, and one for everything else. I know I'm probably not applying best practices, but I'm so tired of it.
For an article that mostly read as PR for Okta, I'm glad that they mentioned browser/OS keychains and OAuth.
If Mozilla Persona had a big push from a sales force behind it like it appears Okta has, I wonder if they couldn't have blown out this whole market a while ago.