I am always in favor of innovation, especially in the railroad sector. However, as Rusty points out in his initial post, we don't know if this innovation will be the one or not. Real-world testing is the only way to find out. We sometimes forget that the steam to diesel-electric transition is littered with innovations that simply didn't work.
Rather than pass judgment and play electrical engineer for the entire electrical infrastructure of the US, I will wait to see what the test results are and form an informed opinion on viability from there.
