TL;DR on the actual guidelines (ironically), but I don't think most legislation has too much trouble with clear wording. The very reason legislation is so long is that it must be excruciatingly clear and unambiguous to avoid loopholes.
Where trouble usually comes is when the writers don't notice an edge case and fail to provide for it.
I think the current wording style works quite well, but I also think that it would be good to A) have plainspeak AND legalspeak versions publicly available well in advance of any vote, and B) Expect lawmakers to actually know
what they are voting on (speaking from experience, they often must have their own bills explained to them before any changes can be requested).