The power of hikki still affects to us (both positively and negatively). Look how wonderful this is... She's already in her hiatus, yet the thread is still pretty active

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To be fair, her voice was not perfect at all in the concert, and yes she struggled sometimes for the higher keys. But most concert you've seen on dvd are already edited. I will not compare the edited dvd voice with a live-streaming where the crews could not edit immediately. Besides, her voice is more than fine in this concert. You have to account for the fact that her songs are hard to sing (esp when the notes go from low to high to low in just a few seconds within a song).
And knowing hikki for 11 years, I never expect her to fly around or changing 10+ costumes during a concert. This concert is excellent IMO.