There is now a rapid inspection regime. The CFM56 has been in volume production for some 35 years now, so I wonder why it is only now that an event which requires a campaign check has come to light.
Rubber jungle is not only accompanied by the smell from the oxygen generators. I've more than once seen pax describe to the media that the masks were "old and dusty". Nobody had explained that the "dust" is actually french chalk, which engineers pack them with to minimise any snagging on deployment.