These are my exact thoughts too. Yet for some reason went I want to raise them everybody tells me I just cannot accept the fact Madara got defeated. Perhaps, but this was so unlike Kishimoto, if you ask me; he makes every battle long and exciting, and quite frankly my expectations for this one weren't even close to being met. If Minato would have won, it doesn't matter, but to do it against Madara so effortlessly - that's just reducing Madara's worth as a character. Yes, Minato is powerful, with a high level of intelligence, with a good number of techniques, but people conveniently forget Madara is too. Is it that shocking for all Minato fans that Madara might have planned this? To be able to get the Nine-Tailed Fox with no real obstacle blocking his way (sans Naruto of course).
Let's examine the length of recent battles that Kishimoto has given for us. Take Naruto and Pain, for example. It was twelve chapters.
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Next, Sasuke and Itachi. Ten chapters of clashing.
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When you look at Minato and Madara's fight, it was not even seventeen pages, which is the length of one Naruto manga chapter. And this was one of the battles that many have been waiting for. Of course, it's Kishimoto's story, and he decides the direction where it goes, but I'm sure that many other readers expected the fight to be a little longer. But if Minato defeated Madara, then so be it.