It's certainly a cool looking design but I'm not really sure if it's that much better than what's used today! With the recessed location of the heads of the outlets and top of the hydrant it seems like you would have a large potential for collecting ice and other frozen matter to prevent wrench access. Even in dirty areas dirt could become packed in making access very hard. That top piece with the snow pole looks nice but it's going to be a great thing to get vandalized and stolen very rapidly!
In reality if you look at existing hydrants they work very well. Only a very small percentage don't function when required and in most cases the reason for not being functional is due to vandalism which will happen with any hydrant design that's easy enough to be rapidly used by firefighters!
The bottom line is I'm not sure that these are worth the additional cost for what they accomplish! It's certainly nice to see somebody, especially firefighter developing new products but in this case I don't think the product will solve that money problems.