Reacción a "‘Science’ retracts controversial article on bacteria that used arsenic to grow, published in 2010"

I'm not surprised that this has ended up this way, as the original paper has sparked a lot of controversy. I remember when the article that has now been retracted was published, a journalist asked me about it and I commented that they would probably have to repeat the work because it seemed too groundbreaking a discovery to be believed based solely on the experiments of a single group. I understand that the authors disagree with the retraction based on Science's change in rules. It's a shame that such an amazing discovery has ended this way... but that's science, and without reproducibility, there's nothing you can do.