I'm certainly not an aviation enthusiast (I don't go out of my way to read articles about it) but each time I hear about the F35 it's about its non combat readiness or its costs overruns or just how late it is and it will never amount to anything really usable.
So I'd take this announcement with a (massive) grain of salt. It looks more of a PR move to save face than anything else.
Now the only way to convince me otherwise is to effectively put the planes in real combat.