You pretty much summed it up, though I seriously doubt it will be "fixed" in a future update, Whiterose.
The incredibly frustrating thing to me is...
It's a feature on the box that people took under consideration when purchasing it. Sony is not simply removing the option to use Other OS from future systems, they are retroactively taking the feature off the box of every unit they've ever sold and effectively holding other features on the box at ransom unless the owner complies. That's an incredibly dishonest business practice.
It's like selling someone a car, and then 12 months down the road, telling them the cigarette lighter feature is being discontinued and they have to choose between removing the cigarette lighter, or not using the radio, CD player, or any of the CDs they've purchased to play in the CD player anymore. The car still fulfills its primary purpose, but it's not what you paid for.