That still seems trivial to strip out and/or launder. Seems like theater for those who are immaterially concerned (in this case, the EU).
It seems we generally have trouble removing emdashes and phrases like "load bearing", even when we're looking for them. Identifying and removing subtle contractions, or less visible nuances will be tough, especially if they change to avoid detection.
prove it
I don't see how that's possible especially for shorter blocks of text.