Mac external displays for designers and developers

Haven't worked with a designer or developer who runs their machine at full Retina in a long time, because Apple has never really pushed at increasing resolutions since introducing Retina displays everyone's just running at scaled resolutions. Full retina feels extremely cramped for a modern computer.

So similar to how color calibration on the web doesn't matter so much because all the users screens are calibrated all over the place I don't think and obsession over pixel perfect Retina matters so much when almost no one is running their Macs at a non-scaled resolution and isn't there even some weirdness in scaling with the phones running at "3x"?