Hard packed sand and the rail of your twin tip are as dangerous as snow, if not worse.
NO not the kind of snow I´m talking about
Not powder, but rock hard icey-snow... (we have like 20 words for it, but harder in english)
I´ve crashed a lot in both and that just a stupid thing to say! I have 200 days a year crashing in both those two, and trust me there is a huge difference. And even in shallow water there is still water to take a bit of the force.
Not saying you can´t get injured in shallow water, but it´s not going to kill you watching someone. Btw I´ve crushed my elbow, broken my hip, and broken my arm straight off during kiting, and non on shallow water. Snow is worse
Anyway a helmet won´t help you from braking you neck, skiers and snowboarders over here do it every year, with a helmet...
You an say I don´t want to go big or fast and take that risk, just don´t, but if others want to do it so what, they know their game, risk and the all the elements. I sure take precautions - I wouldn´t do a big loop in 20cm of water myself, but shallow waters are great fun. And it´s cool to see people going big and riding hard! And again remember that they normally pop away from the shallow part towards the deeper part in these movies you hate so much. So not as unsafe as you think. And as long as you have the right placement of your weight catching some sand if no big deal, I never fall cause I know and am prepared in my body in shallow parts.
You go ahead and wear all the safety stuff in the world, but kiting is actually a pretty safe sport when you look at the numbers of injuries so don´t go ahead and judge others... And not the industry! It´s just ridiculous!