It's kind of an odd thing. I (random non-academic amateur) actually spent a bunch of time trying to parse the paper, which was kind of a combination of interesting ideas and incomprehensible ambiguities.
One real academic researcher also put some time into it. The good part of the paper is explained here. My guess is the problem is going from ARM to SARM.
While I'm sure most people involved think of the experience as a wash, I feel like I learned a bunch about deep learning in the process.
PS, also sad that the author did this.