Do you work in distributed systems at a level where you understand their claims, and the significance of this work vs. a general dislike of their high level imp

Do you work in distributed systems at a level where you understand their claims, and the significance of this work vs. a general dislike of their high level implementation choices? Not implying anything with the previous statement except that not all software people understand strict serializability, etc. in distributed systems. In this case, you need some understanding to critique the paper. And if you do work in distributed systems at that level, please elaborate in detail what you're trying to refute, because it's all "I feel this should be bad. We need to be careful in trusting them!", which is unconvincing.