If your legal system relies on reading the minds of lawmakers to infer their intent then your legal system is effectively arbitrary since those lawmakers can claim they intended anything.

Welcome to the EU, a legal system where nobody effectively elects anything and any major decisions are made without any democratic element whatsoever.

Their attempt to ratify their behavior went so badly (in France and the Netherlands where actual popular votes were collected for an "EU constitution") that they just renamed the thing and did what they want anyway.