Because it's currently 511 lines. Why would I want to scroll up to see the stuff I care about? Don't you want the relevant stuff to be right there in front of you?
But maybe you decide you want to see more. It makes perfect sense for a cli tool to output the most interesting piece of info last: then you can decide on the fly whether you want to scroll up or not.
Because programmers can’t figure out how to have a CLI that prints in a normal order, with the newest stuff on top instead of on the bottom.
Setup a fresh new large monitor. Open CLI. Run command. Watch output at the bottom of your screen. Keep watching the bottom of your screen for the rest of the day.
Sure you can tile windows and it helps but come on. Just have the command/input section in the bottom and the “output” on top. Keep the command bit on the bottom.