The json API might a game changer but why is there so much love for the custmiser?

It's just another interface guys, it is cool for sure but so what!!

If the time spent on customiser was spent on new apis, eg a post relationship model (similar to the posts 2 posts) plugin or a queue system to replace wp cron, or fixing the post status API, or proper oop code in core Wordpress could actually be a proper cms.

Instead of trying to make wp easier the core guys should just make it better and empower developers to make it awesome for everyone.