The 'simple' remark was in response to your wide-eyed implication that 1000 takeoffs and landings per day is somehow a challenge for modern computing systems.
You'll lose this argument sooner or later. I just hope it happens before several hundred people find out the hard way that humans no longer have any business in a control tower. With your attitude, Therac-25 would have been seen as grounds to shut down the entire field of radiotherapy.
Your “simple” springs from your assumption that the problem is easy and anyone who disagrees is dumb. This is also why you can’t hear any of the answers others have given you. You don’t want answers. You want to be “right”.
No one thinks that the difficulty with automatic ATC is that computers have trouble counting 1000 things.