Cameras without a reversible screen force you to stay behind them. Or maybe they force you to buy an external monitor, an HDMI cable and a hot shoe adapter.
I don't think camera companies are designing cameras without a reversible screen because they think you don't need it. They know it's valuable for many buyers. I think the reason so many cameras are being designed with screens that don't articulate all the way to the front is because there's always something in the way.