Raiton armour isn't like Chidori Nagashi, it has no electric effects and its gaseous,
whereas Sasuke Chidori Nagashi is shape manipulated and has an electric effect as evident against Yamato's Mokuton and Bee's body respectively. People have touched Ay's Raiton shroud with 0 effects after all, whereas people who have touched normal Raiton have gone numb or have shown electrocution.
no, of course they are alike & it have electric effects.
nagashi is nature manipulation, not shape.(only Kirin uses any substantial shape)
you are arguing against redundancy.
mei is not immune to lava on her lips/acid on her body.
slugs & narutos book & his clothes are not immune to fire, friction & gravity.
raikage doesn't need to be shown electrocuting people, as he isnta defensive fighter.
and we certainly don't need to see him shocking his allies(comic relief) to ruin the contrasting surly, overly seriousness of his character archetype
and RnY boosts his reflexes, which means it runs thru his system just like sasuke did to himself.
the difference is raikage has the training & the genetic gifts to handle the backlash...so he is immune to C4
C3 gets intercepted & run thru before detonation or black lightning, if it even comes out, as deidara won't last very long