Because matters over things that touch nerves within a population should definitely not be provoked without their consent. An apology made on your behalf is someone speaking of your *feelings* for you, which is the worst thing ever. Much different from making military or economic decisions, which have no belief behind them, they are just affairs of the state.

Why do you want a public opinion on something that doesn't affect you yet you're content with your government deciding what's best for you militarily and economically even though they could be making a decision that the people would not favour?