>>47507846>>47507222On the flip side, not only would ground-types be grounded in general by lightning, but lightning can actually STRENGTHEN the ground by forming fulgurite, which is sand and other loose material fused into a solid form.
Now as for how electric-types themselves are weak against ground-types... I'm not sure. Like, how does tossing sand on an electric generator disable it? I imagine that maybe grounding a lightning-type dilutes its power.