I'm a bit surprised at how little these articles have discussed the techncal source of the problem, even to say if it's even been identified yet.  Is that additional 20-seconds due to software or hardware?  If it's a software issue, it sees like identifying a fix shouldn't be /that/ difficult.

Or has a fix actually been identified, and the main issue is the additional months of testing they'll now need to do to prove it's in effect?