My thought on this article is that it is still probably best to use glass bottles. For many years, parents fed babies using glass bottles (that was the case in my own family).
These days, I use glass pop-top bottles that I bought in Home Goods for about $3 for my water. They are small and convenient - and kind of cool and old fashioned looking.
The article lists some of the companies affected by these other ingredients and although it doesn't seem so bad, I would still switch to glass bottles. If you're not ready to give up plastic bottles for your baby (and you) just yet, then try using the glass bottles more often. You can wean yourself off the need to plastic this way.