At the end of the day, I think we've heard enough about this connector that any DIYer who's done their due diligence won't have a problem. And that's the thing: this isn't a connector designed for average Joe to play with. Engineering such would only add to the cost and I would argue since most people don't build their computers, manufacturers would like to save pennies where they can. But even then, there's only two things to worry about: make sure the connector is seated all the way in and make sure there's not a lot of bend right next to the it.
I mean, think about it this way, there's nothing stopping you from working in the engine bay of your car, but the engine bay of a car isn't designed for the layman to tinker with. Because designing an engine bay so that a 3 year old could take it apart and put it together would make the car way more expensive (and probably not as useful).