Shacos boxes

I saw the video of the shaco top lane (Loved it thought it was awesome that he mastered the champ) and decided to try it out. Something I CANNOT stand is how people can kill the shaco boxes even before they've stealthed, what's more annoying than that, is that AOE Will kill the boxes as well before they stealth. I know it has always been this way, just wondering if there's a reason for that, or if it'd be imbalanced to make them unkillable before they stealth

TL;DR I don't think Shacos boxes should be killable before they stealth

Edit 1: In the game I'm playing right now, if Vi uses Excessive Force on me, and I just put a box down, it kills the box, 1 shot

Edit 2: OR the LB that can use her Distortion and kill the boxes, if ANYTHING make it so you have to AA/target them with something