There's actually a well-known effect in standards, that large orgs want to overcomplicate them, as having implemented a bunch of overcomplicated standards becomes part of their moat against competitors. This is definitely done deliberately; the most blatant example is Office Open XML but it's true of others too. They know that they have the staff to waste effort on it, and others don't.

I'm not sure anyone is thinking 'lets open source our most dumb ideas to hobble potential competition' - but they would do it if they thought of it.