Well:
I had interpreted this had a negative connotation:
"No, things are not perfect, the graphite catalyst did not work properly. But we know we can make diamonds with both graphite and the catalyst...and also with several unique heat sources and heating schemes.
Our instrumentation has also failed to materialize!
It was always the hardest part of the whole effort, Nobel Prized thinking, I called it."
But... It looks like they have a solution :-)