Samsung adh warranty

I got a Samsung A3 smartphone on contract about 6 weeks ago and stupidly managed to break the screen. I didn't get the insurance (my own fault). My issue is not with the phone, which is great. My complaint stems from them not including the A3 in their adh warranty while phones like the galaxy trend and trend neo are included. As a further issue, I would love to know why Samsung doesn't insist that the adh warranty is used as a sales and marketing tool by cellular service providers when advising about phones. Surely this is a great way to convince someone to purchase a particular product.