by chris1nd
It may just mean they hadn't considered the possbility of going backwards. It happens in rules all the time.But hey, I am not a rule literalist. Indeed, I very nearly couldn't care less how a rule is actually written relative to intent or what makes play better.
And I am not sure that intent was conveyed much by the translation nor has affect on gameplay been discussed at all.
Instead, what we have is "it doesn't say you can't".