A commenter named "Godfroi Shagnasty" notes that the headline of this article is misleading because DNA as evidence isn't in question in this article. Rather, the fallible thing is the process by which law enforcement analyzes DNA matches in "mixtures" of DNA from multiple people like the kind found on doorknobs and such.
Although the headline is highly editorialized, it's clear that DNA evidence is just as fallible to bad science as any other form of evidence and that we must treat all forms of evidence with respect and skepticism if we are to find the truth.
1 in 40 false matches rather than one in a million, throughout thousands of cases? Outrageous.