Can the Nexus and Inhibitor Turrets have some kind of defense?

These are the most important turrets in the game. They deserve a bit more than just extra HP.

How about a more armor and an effect where if they would take more than 30% of it's HP in 1 second, then all damage it recieves is reduced my 55% for 4 seconds. This effect has a cool down of 9 seconds.

These turrets should be hard to bring down. They shouldn't be demolished in literally 3 seconds.