I vaguely remember if I tower dived an enemy with a team and I hit them one time for the killing blow, the tower would still target me until I got out of range, even after the enemy had died.
But now if I dive an enemy under tower and kill them immediately, the turret never even bothers to target me at all. I can literally run under tower, attack an enemy and then immediately switch focus to the turret without even worrying about it hitting me... It's nuts.
Towers are a joke now. Seriously... People tower dive a lot more frequently since they got changed. The inhib turrets are such a joke that a single tank can just stand there while the team 100-0's the turret.
I can't tell you the amount of times I've seen someone diving a laser turret and then standing in the laser for like 5 seconds before walking away and surviving with 100hp. It's too easy to gauge the damage over time.
Laser turrets should be ridiculous and just start blasting you heavily the moment you get in range. Just have them do the same damage to minions as they do now, and then have them do 3x more damage to champions.
Also, yeah... fix the turret aggro because it's terrible now.