>You'll certainly NEVER see rolling shutter in any PRACTICAL application for video unless you pan like a true madman
Fast lateral movement doesn't just happen on a whip pan. Any scene involving fast vehicles, high speed machinery or strong vibration is likely to have some level of rolling shutter artifacts. Many perfectly normal tracking shots will have some artifacts, particularly if you're shooting handheld. Modern fast-readout sensors are very good, but they aren't perfect; to a great extent, we've just got used to seeing mild rolling shutter artifacts and don't immediately recognise them as an image quality defect.
There are still lots of good reasons to use rolling readout sensors, but there are also many real advantages to global sensors.
Fast lateral movement doesn't just happen on a whip pan. Any scene involving fast vehicles, high speed machinery or strong vibration is likely to have some level of rolling shutter artifacts. Many perfectly normal tracking shots will have some artifacts, particularly if you're shooting handheld. Modern fast-readout sensors are very good, but they aren't perfect; to a great extent, we've just got used to seeing mild rolling shutter artifacts and don't immediately recognise them as an image quality defect.
There are still lots of good reasons to use rolling readout sensors, but there are also many real advantages to global sensors.