I like this article. It was very well laid out. I've already added a new card to my Trello board for taking a look at implementing "yield" in our software application.
"I just wish they had a good <insert requirement here>" beautifully sums up why it's hard to get any alternative up to credible momentum / activation energy.
A lot of alternatives do individual X, Y, or Z functions better than WP. None I've seen have achieved a reasonable fraction (say, >40-70%) of the extremely broad set of aggregate requirements the entire developer, designer, and user communities would need to commit to a WP replacement.
Having a good plugin and theme system with an intiuitive web UI would make the rest of it easier. Bonus points for being able to add multiple repos.
Unfortunately, the can of worms that opens up in Wordpress is one of the worst things about it. Every plugin and theme is essentially its own ad-hoc web application running with global privileges.
Yeah, I found this pretty cool as well. Plus from inside the iframe you can keep navigating to the Learn tutorial page over and over again inside laptops and create a cool snake like laptop, lol.