Author here. > perhaps he is suggesting the standard loading icon should switch to a sort of unobtrusive network in/out indicator after the initial rendering

Author here. > perhaps he is suggesting the standard loading icon should switch to a sort of unobtrusive network in/out indicator after the initial rendering yes, that was what I implied, which is why I wrapped "\"loading icon\"" in quotes :) I agree though that the wording isn't very clear, my bad!