Fellas...please...DON'T WORRY ABOUT BANDO! Why is he suddenly more credible than Ambrose? He just nitpicks little bullshit more and more to make it look like he's got this massive scathing case, when he's got nothing. He's a nobody and probably just jealous he couldn't be involved in BofB. Don't let artistic genius be ruined in your mind by the type of person who wants to tear art down because he's so selfish that if he didn't create it, he wouldn't have it to be admired or enjoyed by the world.
Of course Band of Brothers isn't 100% factual. No history or war film could ever be, it's just impossible. But most agree they'd gotten all the major stuff very accurate, and even a surprising amount of the detail and atmosphere was dead-on. All that matters is it captured the spirit and moment of events the world should never forget, and a small few have ever been able to lay a claim to something like that.
Just enjoy it boys, it's simply outstanding stuff no matter how many grumpy complainers vie for their own attention.