I’m not really sure I understand the multiple comments people have made about having to scroll too much. When you’re in your photo gallery on your phone do you swipe through every photo (in the zoomed in view) to get to an old one when you know there is lots of photo’s in between? Or do you change view, and get to it quicker that way then zoom back in?
Or another analogy, When you’re in your calendar looking at today in the single day view, would you swipe through to get to a date next month, or would you change to the month view to get there?
The point is that you ‘zoom out’ to the vertical list and zoom back in if you need to get somewhere you know has a number of other items in-between.