No. But in this case, it doesn't matter much - the paper isn't really making any claims in relation to other systems. The authors can reasonably be trusted to d

No. But in this case, it doesn't matter much - the paper isn't really making any claims in relation to other systems. The authors can reasonably be trusted to describe the design of their own system, particularly since the source is out there. Peer review would improve the paper, undoubtedly, but wouldn't have any effect on the system design itself or Google's reasons for building it. The latter two are the focus points of the whitepaper.