Really, +5 Insightful? I actually thought the summary and headline were quite good. Let's take it point by point:
1. "A genetic-modification technique used widely to make crops herbicide resistant has been shown to confer advantages on a weedy form of rice, even in the absence of the herbicide."
Yep, that seems to be what they're saying - they took genetically-modified rice, cross-bred it with weedy rice, cross-bred the offspring to make a second generation, and found that the resulting plants were fitter than their weedy grandparents, according to several fitness measures.
2. "A common assumption has been that if such herbicide resistance genes manage to make it into weedy or wild relatives, they would be disadvantageous and plants containing them would die out."
Well, yes. From TFA: "“The traditional expectation is that any sort of transgene will confer disadvantage in the wild in the absence of selection pressure, because the extra machinery would reduce the fitness,” says Norman Ellstrand, a plant geneticist at the University of California in Riverside." Seems legit.
3. "But the new study led by Lu Baorong, an ecologist at Fudan University in Shanghai, challenges that view: it shows that a weedy form of the common rice crop, Oryza sativa, gets a significant fitness boost from glyphosate resistance, even when glyphosate is not applied."
This is taken almost word-for-word from TFA, so is also pretty accurate.
4. "The transgenic hybrids had higher rates of photosynthesis, grew more shoots and flowers and produced 48 — 125% more seeds per plant than non-transgenic hybrids — in the absence of glyphosate, the weedkiller they were resistant to."
Yep, these numbers come from TFA. The point being that this "extra fitness" was measured under normal conditions, with no glysophate application; so the weeds are not only glysophate-resistant, but natural selection will operate in their favour.
So yes, this is totally botched; an outrage, I say! Oh, wait...