<< How could the word "breakthrough" be interpreted any other way other than something to do with the technology and a "new"fiber... what on Earth would that word have anything to do with contracts, sales, or production... >>
I agree.
Especially since the title of the PR says that they are "SET TO UNVEIL MAJOR SCIENTIFIC BREAKTHROUGH IN SPIDER SILK BASED POLYMERS".
As the title states, the "breakthrough" will be in "spider silk based polymers".
Since spider silk is a polymer, then the "breakthrough" will be in "spider silk".