Good link, thanks for pointing it out. Re: not clear cut, that's always the case to varying degrees :) To quote the author's in document response to the Google Doc you just linked to:
"Update by Richard Socher (Nov 2014): This document is outdated and its concerns have been addressed in the final version of the GloVe paper. Glove gets better performance on the same training data when actually run to convergence. See last section of Glove paper for details."
This is a good example of peer review in academia beyond just the paper review committee -- other researchers point out concerns or issues with methodology and they're addressed by the authors or other contributors. It's also great that the initial concerns could be properly tested thanks to the open source nature of both projects.
I will admit I didn't discuss the intricacies of the evaluation in my few paragraphs above, I was primarily speaking to the broader point that open data is helping academia compete with the goliaths of industrial research! =]