Does a child's toy, which is supposed to represent a first aid kit, with the red cross on it constitute a misuse?
Can a random private hospital not use the red cross?
Use by organizations other than the International Red Cross and Red Crescent Movement.
The point is to strictly maintain the neutrality of the symbol in wartime and similar situations, as distinct from merely indicating (for example) an army medic of a particular country. If it ends up broadly used just to indicate 'first aid', that purpose is lost.