Disappointment is not the issue here. That I perfectly understand.
However the assumptions that the game will get worse or that Bioware can't do this because I'm a loyal customer borders on the inane.
To counter the example of a toy to a kid, Bioware ain't your parents. They're a business. They aim to make a product that will sell.
The sooner people get this, the faster you'll avoid disappointment.
What people are saying here is more or less due to their disappointment, there is no other word that can describe it.
In your second line, the latter is overreaction that I've barely even seen, the former is because there was another game that was super hyped and got delayed for the exact same amount of time in the name of "polishing", then got released with a ****ton of bugs and optimization issues.
Thirdly, the point of an analogy is not to be taken literally, if that's the case then I shouldn't even pay for the game since what kind of parents use their kids money to buy his gift. It's simply to show what level of disappointment/sadness fans will be feeling.
Finally a business that simply aims to create a product to sell, is a failure business, the product has to also show how good the business is. Like if a Musical Artist produces a second album that sells 100k copies, that's a really good sale figure! But was the music good? Was there improvement from the last album? Does the artist deliver what he tries to promise his fans? If everything went well, then he's all good and will probably start to sell even more in future albums, but if he failed then that's a good bye to his career, or he'll go through a really tough time. That said the game was promised at October 7th, so much hype was sparked for that date, they've already delayed for a year and gave the impression everything is finalized and they had enough time, but they postpone it for another 40 days.
EDIT: Let it be made clear that I'm not bitter at all about the delay, even though it annoys me because now I can't really play the game on release because of finals. And that I know very well that there are a few people who are overreacting about the whole deal like mad.