Then women who say "why do you need support for FF, you just read it and go!" complete bullshit. That's like saying "why do you need support for breastfeeding, breasts create milk, children have a natural instinct to suckle, just put the child on your tit and go!"
I had every intention of breast feeding, and while I was in hospital with my poorly baby after birth she was struggling to latch, and she had a nasty infection, after 3 days the hospital gave me formula, teets, and requested I mix feed her to get her milk intake up and get her fighting fit... fair enough... I wasn't happy but fair enough. In the hospital they also asked me to pump (and again, various versions of one popular brand)
Anyway I've ended up having to exclusively formula feed, not what I wanted to do, but baby was happier so I worked through the guilt and I am now fine. The hospital sent me home with lots of information on formula feeding, safe preparation, safe storage...etc
When you look online you see plenty of clueless people preparing formula in quite dangerous ways (i.e, boiling water and then cooling it before mixing it with the formula, and therefore completely missing the point of the temperature of the water and what it's for)
As well as making sure you safely formula feed your baby, there are plenty of complications regarding allergies, reflux, comfort fomulas, reflex formulas, soy formulas, different types of teets, bottles, higher likelihood of colic..etc. It's also debated whether you can actually over feed when formula feeding...etc.
OP I do not think you are being unreasonable. As an informed choice is always the best choice. Luckily my hospital was very supportive, as was my midwife (Who happened to be a formula feeder) and health care people. Why they can't just happily answer your questions is crazy!