This was 16 years ago. Was this procedure available then?
Without much work I found articles evaluating laser fetoscopy as early as 2005.
The point though is not whether this procedure was available then, there were other treatments such as selective removal of amniotic fluid even earlier, but the mischaracterization by the author of the article that the existence of twin twin transfusion syndrome means that there can be no law against abortion at any stage in pregnancy since selective termination is needed to save one twin.
https://pubmed.ncbi.nlm.nih.gov/19788973/
Incidence of complications in twin-twin transfusion syndrome after ...Study design: One hundred fifty-two cases of TTTS were treated with selective fetoscopic laser photocoagulation from 2005-2008.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2666485/
Between July 2006 and June 2008, 19 monochorionic diamniotic twin pregnancies complicated by severe TTTS (Quintero stages III and IV) underwent fetoscopic laser ...
https://pubmed.ncbi.nlm.nih.gov/19281575/
Selective fetoscopic laser ablation in 100 consecutive pregnancies with severe twin-twin transfusion syndrome. Aust N Z J Obstet Gynaecol. 2009 Feb ...