Interesting, I think they mis-characterize Steve Yegge's rant. Steve did not give Google+ a glowing opinion, but the "pathetic afterthought" part was aimed only at the API part of it, not the entire product.
Yours was the comment I was going to make. Furthermore, while I appreciate Yegge's thinking, I don't see how the facts he presented are not common knowledge already. We easily can observe Google's lack of "platform"; whether or not this is an issue for the company is open for debate. It is not as if Steve revealed some super-secret metrics which reflect negatively on the company.