Error in Waterloo's rules, or just awkward wording?

I'm not sure how often it will come up, but there is a possible contradiction between the rulebook and the player aid on when the initiative changes at 7 p.m., or perhaps just unclear wording

According to the rulebook, the French player keeps the initiative "If at the start of the 7 p.m. turn the French holds all three strongpoints."

The player aid states "The Allied player will take the the initiative if the French player does not control one of the three strongpoints."

I think it's trying to say the same thing, which is that the French must hold all three strongpoints in order to keep the initiative. That would be the historically correct interpretation. Hougomont never fell, but the French did occupy the other two.

But I could see a French rules lawyer arguing that he does control one strongpoint and therefore keeps the initiative. I think it's a tortured reading, but I've run into worse over the years.