Railjack and Targeting.

Most people have been complaining about the grind, the balance, and whether or not this can be soloed. While that is an annoyance, this post is not about those. So, why do we have a very clunky target lockon, but no option to select nearest/farthest/aimed at/highest threat target, separate from the "share target with others" key? Also, why does the enemy we aim over have no distance indicator when all our guns are extremely vulnerable to damage falloff and overheating?