I see what you did there... But yeah, I get that. They're starting to develop things a little more with weather but there is so much they could still do. The special defence boost for Rocks was a neat addition that made sandstorm more interesting to use. Look at hail, aside from make Walrein into an unstoppable war tank it's done little else since it's introduction. On a realistic level it, and sandstorm should both affect accuracy. Though that could end up extremely broken.
Another thing that's also along these lines that I've mention before is things like Thunderpunch and Volt Tackle actually doing damage to Ground types. Though the electricity would be negated, the physical impact would surely be felt. If a Raichu and a Sandslash were fighting, they're roughly the same size, and if Raichu Volt Tackled it wouldn't just ricochet off Sandslash while Sandslash is left standing dazed and confused, Sandslash would feel the force behind the attack just not the charge.
Another thing that's also along these lines that I've mention before is things like Thunderpunch and Volt Tackle actually doing damage to Ground types. Though the electricity would be negated, the physical impact would surely be felt. If a Raichu and a Sandslash were fighting, they're roughly the same size, and if Raichu Volt Tackled it wouldn't just ricochet off Sandslash while Sandslash is left standing dazed and confused, Sandslash would feel the force behind the attack just not the charge.