That's because you hate TJ Green. ;)
Adams and Geathers starting should be fine, based on the limited sample of Geathers from last year. I'm assuming whatever injury he has right now isn't major and he'll be healthy. Unlike Lowery, I think Geathers has some playmaking ability, and can really prowl and hit in the box.
He DID change things up. Omaha got a lot of attention, but that's not the only one he used. He used Apple, Marshall, Montana, etc. And it didn't always mean the same thing, so your bolded, while just an example, kind of illustrates why the call could be confusing for defenses. When you think you have it figured out, it changes, and you're offsides. Ask the Chargers, they were probably the absolute worst at it.
The Packers have been using "Green 19" since the Favre days, but they've also changed up and used different words. The Pats used to use Omaha, then Raider, then Alpha, etc. I don't think the word is important.
By the way, I don't claim to fully understand how they were using it. But I do think Rodgers is correct that it was a way to specifically audible the snap count, as opposed to changing the play or the direction of the play.
If it meant the same thing each time, wouldn't defenses catch onto it and be able to anticipate it? And if it's the same word, how would the offensive guys discern between dummy counts and real counts?
You're right..we will. So better to get used to it now. I'd recommend just skipping over these types of threads and not reading them of if you find them that annoying. ;)
ps. I also find them incredibly annoying...but they're going to happen regardless