Poppy's Tackle with Courage of the Colossus may have an unintentional interaction

So while playing with Poppy support, I tried out the new mastery on her and I was incredibly surprised at how it interacted. You see, I had thought that I needed to slam them into the wall to gain the shield, but as it happens, you really just need to tackle them. And... that's it. Considering how disturbingly easy it is to do, I'm honestly a little surprised but it was giving my early game a ridiculous amount of pressure and skirmish advantage.

Between Poppy's passive and Courage of the Colossus working together so well, it allowed for me to go in pretty much at level 2, hammer them when a few auto attacks and my Q, then walk out of the fight at almost full health. The biggest problem is that I didn't even need to land my stun most of the time. I pretty much just tackled them randomly and picked up my passive shield and boom.

The biggest issue with this was that I could tackle them into an open spot, Q, auto attack then walk away without worrying about any returned damage from the ADC. After doing it about 3-5 times the ADC was completely zoned out.

I just feel like the Keystone Mastery should only activate if Poppy hits them into a wall to gain the shield.

What do you guys think?