I was surprised that ...there are no backwards steps in aikido. since the style I practice has a specific exercise for moving backwards. Still, I recall seeing a style that its practioners didn't seem to move backwards.
Does your style use only forward motion, or does it have exercises and ways to step backwards?
When I started I was taught tenchi (I don't know the literal translation here) movements. This was later simplified to "stepping back" because I don't think tenchi translates this way. Anyways, I was definitely taught backwards movement, although not a lot of it, and I think it can definitely get you in trouble.