I'm not sure why this would surprise anyone. There is no technology that any country's military or politicians would not consider weaponizing. It's just the way of the world - nations cannot afford to ignore technology that their competitors may be utilizing at their expense. Unless doing so is expressly covered in a treaty (e.g. chemical weapons)- and even then several nations will very likely still pursue it covertly.

This also by no means conflicts with an interest in developing the ability to counter the technology. Most nations will want to do both to enhance their own offensive capabilities while playing defense against others.