I am not sure if you explored the links in the article but https://aem.asm.org/content/77/17/6076.full#aff-1 states that plastic is not "munched" (absorbed/attached) but biodegraded (broken down/dissolved) by the fungi. Also, the kind of fungi used is https://en.wikipedia.org/wiki/Pestalotiopsis and that's not a kind you'd ever have in your pizza, I guess.