Yes, you do select your attacks in UO. You also move your units. You simply do this in "batches," which the game then executes, making adjustments to your plans as the map conditions change. You literally can't conceive of execution abstracted and removed from immediate button input. You can't keep an object or concept in your mind for more than a nanosecond. You must also think holding down a button to sprint in an action game is more automated than continually tapping it I guess? Of course both are more automated than actually running a lap around your neighborhood.
You are dumb. Shut the fuck up now.