Your choice, of course.
And of course FF-ing doesn't make you a worse mother, nor BF-ing a better one. Mothering is about a lot of things.
However, are you feeding your infant a nutrionally and biologically sub-optimal food? Yes.
Breast is not "better" than FF. It is supposed to be the normal way of feeding an infant.
FF is worse than the norm, ie. BF-ing.
There is plenty of well researched and controlled evidence for the "risks" of FF-ing (rather than the benefits of BF-ing).
If you choose this, because your infant has the good fortune to be born in a country where the water is clean, energy is available cheaply, and - should FF make your child ill - there is a national health service to make it better, then that's fine. So long as yours was an informed choice.
It sounds like yours was. Good for you.
However, don't spread myths (even implicitly) about BF-ing. IE. don't imply that somehow it means dads are less involved (they don't have to be), or that you can't drink, or any of this other crap. Because spreading these kinds of myths is what puts people off, or makes a vulnerable BF-er give up before she's ready.
Just say, "I decided to FF because that's what I wanted to do." Own you choice. After that, who gives a shit what anyone thinks?