Probably because your aircraft is US built, they tend to err on the side of safety to avoid any lawsuits. Note the number of decals around the aircraft stating the obvious.
My particular favorite is the one on the inside of the DV window frame on a 757 which says "Window open"!
Can't comment on the damage done by the radar other than we never stand in front of them when it's on and NEVER use it inside the hangar. Same goes for HF transmissions.