Seems like with so many other topics, this one too may really be all about money. The Field Turf people put in a bid for the Metrodome, and they were the lowest bid. The Metrodome is owned and operated by the Metropolitan Sports Facilities Commission, which was created by the state of Minnesota. Projects for public agencies normally go to the lowest bidder as long as they meet all the bid requirements, but that was not the case here. Field Turf sued, feeling they should have won the bid; the agency reacted by going on the offensive and discrediting Field Turf.
I don't know that I would jump to the conclusion that Field Turf is bad, though Icy Patriot makes some very interesting comments that would favor a return to natural grass. Gillette and Heinz Field were two of the worst playing surfaces before they switched from natural grass to Field Turf. That 3-0 Dolphins-Steelers game when the punt got stuck in the mud a few years ago was a complete joke due to the condition of the field.