MagSafe adapters are fantastic but not seating properly is almost impossible. The magnetic design pulls the plug into place everytime. What you may have seen was a slight surge of power. I have seen a red light once in a while but haven't heard any negative press.
Dave McGuire
"What if the Hokey Pokey really IS what it's all about?"
Until I read your question about orange/red LEDs, I would have said the lights on my MacBook Pro and Judy's have been red since we bought them in March. I just asked her what color her light is, and she said "red".
Now that I look carefully, I can see how one might accuately call it orange - but it is a really red orange. As far as I know neither of our computers has had a different shade of red/orange. I wonder what effect other light in the room has on the color or perception of color.
That's our experience, but I am not sure quite what it tells us.