No it wouldn't.Think back to the battle with Bee.When Killer Bee started using his tail beast cloak samehada could only eat a certain amount of tails, I think it was four at a time.That mean Bee was still in his tail beast cloak form even after Samehada ate some of his tail beast chakra.Now compare that to A(Raikage) whose speed is far greater than Bee's, being the fastest shinobi and having a chakra level the size of a Tail beast an it highly unlikely samehada could eat enough of the A(Raikage) chakra to take him out of his lightning release:armor.Furthermore, lightning armor or not, A(Raikage) doesn't have a normal bunch by any means.
Suicide? Deidara lost to Sasuke before Sasuke have MS.There is no way he could beat the A(Raikage) who is a lightning jutsu users, which is strong against earth type like Deidara, and has far superior speed and a massive chakra reserve.The best deidara can do is keep his distance by flying and pray that he doesn't run out of chakra before A(Raikage)decides to leave or he escapes.
You really think this matters? If you can teleport from one base to the others within seconds or you can just run from one place to another within seconds, what does it matter.You are accomplishing the same goal just using different methods.Your point is ridiculous.The 4th Hokage place the nine tails into naruto with the sole purpose of giving him power.He thought naruto would need that power to defeat Tobi space time migration.What did naruto gained from the Kyubi mode, speed.A(Raikage) like naruto could easily get out of the blast range of Deidara's C0 explosion.