The whole point of this episode, in regards to its relevance to Naruto is this....
Anyone else notice the difference between the different Jinchurriki's and their ability to keep themselves in control?
A) The 2-Tailed Cat was not a stray, it was a house broken version... thus her power was one in the same with the Cat's. She had no power of her own.
B) The 8-tails was controlled by the Jinchurriki. He used the 8-Tails like any other technique. He had complete control of the demon, and used it as a supplement to his own power.
Naruto doesn't want the fox to come out at all, period. That is different that the 2-Tails and 8-Tails, even Gara for that matter. Gara's 1-Tail protected him from any physical harm, without Gara losing control. Naruto's 9-Tails protects him from harm by healing him, and lending Naruto his power, to an extent, only to try and make Naruto addicted, and thus dependant, to his power... as we saw in his fight vs Orochimaru.
Also, think of what the Fox would do if it found out that Naruto was the 4th Hokage's son? Maybe thats why noone has told Naruto the truth, not to keep his ego at bay, but the Fox's anger...
Basically, showing the other Jinchurriki's relationships with their demon, is to make a contrast between Naruto, and everyone else.