До "создавать" ни в коей степени они не добрались. Вот цитата одного из авторов той работы (Eckard Wimmer):
It must be emphasized, however, that we have merely reproduced poliovirus by following the blueprint of the viral genome (Kitamura et al, 1981). We did not ‘create' this virus. The complexity of virus structure and replication currently makes it impossible to design an entirely new virus, regardless of whether the hosts are bacteria, plants or mammals.
Использовались готовые весьма сложные части:
At present, it is impossible to synthesize RNA of such length chemically. We therefore rerouted the synthesis through double-stranded DNA, using mail-ordered complementary oligonucleotides, which can be assembled in a linear fashion. After many steps of elongating the DNA strand by adding new oligonucleotides, we obtained a genome-length double-stranded complementary DNA (cDNA) of about 7,500 base pairs that contained all the genetic information of the viral RNA genome (Fig 3A).
И так далее...
Это цитата из работы Eckard Wimmer 2006 года:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1490301Оригинальная статья 2002 года (Cello J1, Paul AV, Wimmer E.):
https://www.ncbi.nlm.nih.gov/pubmed/12114528