I'm really disappointed with Pokemon GO. Despite the issues with the launch I still had a lot of fun playing it initially. But the tracker breaking together with the lack of communication from Niantic killed it for me.
Interestingly, the one time they did decide to communicate was when they announced that they banned a bunch of third parties from accessing their server[1]. Of course, just like in this post, they show a graph with a missing y-axis which tells you very little about the traffic they actually received.
It's surprising that this wasn't mentioned in the Google blog, since according to Niantic it was thanks to this ban that they were able to launch in more regions.