Yes! I remember people complained about it when 10.7 introduced them on the Mac, and the retort was that everyone had been using scrollbarless “windows” on iOS just fine…. Having now used iOS for a few years, I can assure those retorters that it is a giant pain not having visible scrollbars most places.
(I am similarly annoyed that the map scale is only visible on iOS…when in the act of zooming the map! How can I tell how far something is if I can’t see the scale and try to use it at the same time! Lunacy. All to hide a few pixels.)