There is nothing original in the Ars review. It pretty much says the same thing as the other major reviews. Anyone surprised by anything in the Ars review really isn't paying attention.
Anandtech just posted one that is pretty good though.
http://www.anandtech.com/show/9136/the-2015-macbook-review
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It's not that important if it is original or not (although arstechnica's review is from 9th of April, so it is prior to anandtech's, which is also a great read). The whole point is that negative comments about rMB is not coming from whiners or trolls , as mentioned in some threads in MR, but also from very respective reviewing sites. It is clearly stated in this review that the features that are missing from this latest mac, do not fall in the "pro" category, but in the ultrabook category as well.
Regardless, I'm sure that anyone that follows apple blindly will not read either of these reviews.