You guys that are harping on the video production quality should give it a rest already. They were having some fun and hamming it up a bit! Considering that there was still a great deal of info delivered, I take my hat off to them. Everyone seems to think it's easy until the camera is pointed at them, then we see how fast they forget their only line!
The loco looks good. As far as the flashing spark - That is part of the corner that Lionel has painted themselves into with the Vision Line. The need to incorporate small "above and beyond" details that can still be achieved in a reasonable production cycle. Realistically, there's only so much that can be done. I'm assuming that we'll see an animated Engineer's arm waving sometime in the next year or so.