I'm not disputing if it's cool, cuz it was, but was it right? No. that's why it got patched.
Just like the lancer. I had super fun shooting targets through walls when I found out I could do that, but was I in favour for them to fix it? Yes. Cuz it's right to work as intended. But I do hope they bring a wall piercing gun to the game. The one thing I liked about BM was that you can buy wall piercing bullets and that's how I took out target in crows mission.