I think it's purpose is precisely for high cover like that, there's another one on the guardian part of the lane too. You're supposed to keep them in mind while engaging or things like that clip happen.
I've never seen anyone intentionally using them as cover though.
Sure, but it proves that it's very much possible and a very VERY interesting and unique mechanic, and it's not like either marvels or deadlock are finished products. If we were to judge what gets into the game based on performance and optimization alone I'm afraid that you might as well scrap...
