The original article doesn't give any details as to what this "exploit" is in android. Even if it is a real exploit, no new phones will be made with Android 4.3, and at this point, no manufacturer would push an update to an old device even if Google did fix it.
As to Google throwing Microsoft under the bus, that is utter crap. Google privately disclosed a vulnerability to MS, and *TOLD THEM* they had 90 days. After 90 days, Google publicly released the vulnerability. This is standard stuff. Giving a deadline is the only way to keep vulnerabilities out of the NSA toolkit and force MS to actually fix it.