There aren't "too many issues"...there are the same type of "issues" there always are when new devices come out, and the media/online communities/blogs are going ape sh*t about it and it's spreading like wild fire. Apple changed the iPhone dramatically this time around, so there's more attention again...and guess what? With more attention comes more attention on these issues.
Livestream fail? Blame the 3rd party company who was doing the actual international stream...if you paid attention during the issues, there were up signal lock screens showing information about the company providing streaming services...Apple wasn't doing this themselves, they simply gave permission for it to be done).
Miscalculated U2 ploy? It was only a ploy to those uninterested in the album...I have no proof of it, but I'd guess a majority of people either didn't care at all or were stoked to get a free album from a legendary band (that I personally cannot stand, lol!)
Pre-Order blunders? By 'blunders', do you mean people who didn't get their pre-order in on time and had to wait for their device? Because that's not a blunder, and from personal experience, the pre-order went just fine (all things considered when 4 million people were going after the same thing at the same time...ever seen Walmart on Black Friday? Yeah...this aint a cake walk we're talking here. Apple did just fine...just look at the number shipped/sold on release day.
Bendgate? Give me a break. A literal drip in the ocean in terms of % of people having trouble with a bending device. And Apple, because of their strive to maintain customer satisfaction, immediately gave them replacement devices...most companies in the world would have told them to hit a treadmill and stop eating twinkies.
iOS 8.0.1? This is the only one I can give you a pass on...the release of this firmware update in the state it was in was either an accidental release, or a complete blunder on their part...either way, they snapped it back before too much damage was done.
...so 1 out of 5 were legitimate complaints. Color me surprised.