The messaging thus far has been, "it's perfectly safe and highly effective." So it's quite important to share this info now.

Also, what do you mean by 'untested and unnecessary'?

We are, collectively, doing a big mistake, by starting with the elder population. The population most likely to suffer from side effects due to their weakened bodies. They're also the easiest to isolate, usually being out of the labour market.

We should have started with the most mobile people from the working-age population. They're the super-spreaders and least likely to suffer from the side effects.

Old people (and children) could possibly avoid the vaccination at all, when the rest develops herd immunity.

Not sure what you mean by "an untested and unnecessary immune response" (are you suggesting that covid is 'fake news' or not serious enough to be vaccinated against, or have I simply misunderstood that part of your post?), but I certainly agree that there's nothing especially unexpected or alarming that a tiny minority of people with a history of serious allergies should have a reaction to this vaccine.