Military provides Flight Suits, Helmets, and Poppy suits, because the have them, many, in different sizes, mainly for their own use. Civilian company won't stockpile those because its statistically less probable for having an incident. For a passenger, being involved in helicopter incident is what ? 1 in 7.7million ? Unfortunately for the pilots it's 1 in 8800.
For passengers it's very bad luck. For crew, its occupation hazard.