Up until a couple of years ago a chef would always come out and discuss safe choices. Then they switched to allergy menus. The whole purpose of the menu is to know what is and isn't safe. If something changes, change the menu. If there's not enough time to change menus get some colored tape and cover it up. Not correcting a menu is inexcusable and could kill someone.
If I say I need an allergy menu for my daughter and they give me one. I'm not going to go down the list asking if everything is "still safe". That's ridiculous.