Left in the cold
You can't seriously expect us to beleive they fixed all those at one time. What basically is going on here, is that they have CLEARLY sat on a gigantic pile of critical bugs for an extended period of time, before bothering to fix them.
Why were these not fixed and patched as soon as they were found?
How big is the existing pile of stuff they're saving-up for next time?
Here is another bug for them to deal with; they pre-reserved a bunch of CVE numbers specifically for their internal critical security issues (eg: CVE-2016-1739), so we know for certain there are at the very least 7 more critical problems unpatched so far, just from the 17xx series alone. We also know they've been sitting on some of these since April last year.
And, if you watch the news, you also now know that the FBI cracked Apple security without help from Apple now as well, so their stuff is proven useless all over again.