Creating things is a gamble, as mass adoption is almost never by technical merits, but by marketing. So you could make open documented everything but still end up with nobody benefiting from that openness, because a competitor (whether open or not) wipes you out. You saw this happen even in the era where electronic devices were expected to come with full schematics -- there were winners and losers even then.
But, if something has become widespread and well adopted, and it's not open, that's a problem. It absolutely should be opened up and documented. Especially if it's not because the money-grubbing creators of the something are deliberately hiding how it works and locking down control in order to extract more money from everyone else's pockets. The sooner you put an end to that, and the more often you fight against that, the sooner society itself becomes more efficient and fairer for everyone.