Jets Lol I actually agree with you in that the less protection the better. The proposed solution was simply for preventing army wipes from the fact that once you successfully defend an attack and lose a lot of units, your ks doesn't reflect it and so you get BF by kingdoms that should by all reason not be able to do that.
If I attack down at someone 70% my size, fail the attack, then have the next guy who is my size hit him, It shouldn't go through as is. That defender is losing a lot of defender penalty bonus that they by all means rightfully deserve. If the KS was updated after each attack, I think that would prevent it, but as an alternative solution it's to give the defender a very limited time of protection.
But I agree with most of what you said, especially the retals giving retals, and I got rekt as that nerd