Overwatch - Oops! All barriers.

Yeah it’s rather annoying when your team is barriers only… But Y’know, it’s amazing when the enemy team is barriers only and you are a Sombra ready to drop an EMP on their shielded asses!

Or a junkrat, just spamming into said barriers, causing their quick destruction.

Barriers aren't the problem, it's the super burst heals that is hard to get around.