Jane's and BD are playing catch-up to AW&ST. Here's the original memo, by the way:
http://aviationweek.com/site-files/a...2810201%29.pdf
The story over the past few years has gone like this:
1 - Gilmore predicts delays. 2 - JSFPO and LockMart proudly announce they're on schedule. 3 - Gilmore demonstrates how tests were cut and simplified, and defects accepted, to avoid delay.
Today, at best, it looks like Block 4.1 (IOC 2019) will mostly be a less buggy version of 3F.