Firstly, this is a class ability, it's not supposed to be ridiculously strong, it's supposed to be a tactical ability that can be deployed to help you survive. Secondly, just from what you've just said, anyone will come to the same conclusion; you're using it wrong. You're probably popping it mid firefight while you're on lowish health to try and stay alive. You might have gotten away with this in the old sandbox, as a lot of people did, where the ttk was higher and it thus would have taken longer to finish off the remaining health you had, in turn giving you just about enough time to pop one mid firefight and walk away with a sliver of health. Not anymore, the barricade doesn't take too long to cast, its just easier to kill you mid animation now, especially if you're already being shot at. Yep, people can slide through but this is a high risk high reward maneuver. I do this all the time on my warlock and sliding through will take half of my health and leave me open to being killed by a single melee. Again, this is sort of on you. If you see someone running towards you from the other side of the barricade would you not come to the simple conclusion that this guy wants to and has a way of finishing me? Pop your barricade, BACK UP from it to create enough distance to stop OHKills from shotguns. Grenades do not go through shields. Either you have poor placement or your enemy has good placement. Again, this is a class ability, this isn't meant to be ridiculously OP. Why should your barricade be able to sponge a rocket when most supers can't even do that? This class ability works just fine. You should use it ahead of time and before firefights to really take effect of it. Heavy about to spawn? Barricade. Want to challenge this lane but leaves you open to being shot from this side? Barricade. Want to peek shoot while actually knowing where the enemies head is? Barricade. The list goes on. If an ability isn't working for you yet is being utilized extremely effectively by a lot of other players then it's you that has to mix it up. You that has to get smarter in how and when you deploy it. The barricade doesn't need a buff. You do.