Its a matter of perspective i'd say.
Temari's team gave him one mild cut along his shoulder, but Naruto FRS didn't leave him in the best condition either. It seemed like he had some cuts all over and there was smoke around his body (friction), i wouldn't say he was stunned but he briefly stopped.
it didn't just leave a mild cut on his shoulder, it did that across the whole area that the attack hit him, and that was much more damage than FRS did.
But Temari and co's Futon was of the highest level (second only to FRS), while the cloak is simply a layer of Raiton, whose main characteristic isn't properly durability. Madara stalemated against the Alliance because their jutsus were weak while his was of the highest level, even though he was at a disadvantage. His Katon would later be completely overpowered by Mei, a high level user of Suiton.
Take the cloak from the Raikage(s) and they're still tanks. Give the cloak to any other character with regular durability and they'll still be injured by most attacks. They use it because it increases their speed more than anything.
Wait, in no way would giving the cloak to other characters = they'll still be injured by most attacks. The cloak chidori to the heart into a small cut, they'd be completely protected from any attack that was weaker than chidori, even ones as powerful as raiton enhanced blades.
Madara's katon that he used against the alliance wasn't of the highest level, his juubi-sized one is, and that's besides the point which is: fuuton having the elemental advantage does not mean it just treats the RnY as if it isn't there.
Temari and co's fuuton weren't on the same level as the FRS by temari's statements and reaction.
Actually, the cloak was noted to increase speed, reflexes and reaction time (
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) but no words were written about defensive purposes.
Claiming it increases one's defences is a plausible and logical assumption,
but i doubt it makes any difference in these guys case.
It's not just plausible, it's logically
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I have absolutely no idea how you can claim the bolded when we not only have explicit evidence of the V1 RnY blocking almost completely stopping chidori,
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and then the part where Sandaime takes far less damage from a far more powerful attack when he has the shield up. Even its name: raiton SHIELD implies it significantly increases the user's defenses.
Getting back on topic. I probably didn't make this clear in my first post, but my point was that, if the Raikage can't tank something in base, why would the cloak make any difference?
....because we are explicitly shown that the cloak greatly increases their durability. IF Sasuke had hit base Ei with his chidori, Ei would be dead right now. If Naruto had hit base Sandaime raikage with FRS, sandaime would be dead right now. So if he can't tank something in base, it does not follow that he can't tank it with RnY, you have to compare how much his defenses increase when he uses the shield.
You obviously should of know where I was going with this. Your argument holds no water to claim he tanks a chemical compound/ reactant just because he has outstanding tanking abilities.
The burden of proof is on you to shown that his durability isn't transitive to that particular damage type, not me.
And no, using fire as your example doesn't equal acid. Both hold much different component.
But the principal for your case is the same for both: that neither are the same as blunt force or piercing damage that sandaime raikage's body has been shown to take. Why would his super durable body conduct heat any less than something that's not as durable?