Toi,
That’s a far cry from saying you’re not yotzei. The Ittur and the Or Zarua are acknowledging that the minhag remained; the Or Zarua doesn’t know why, but doesn’t explcitly say to change, the Ittur says it’s preferable to light outside, but clearly you’re yotzei inside, and the Gaon is mashma that the minhag still remains.
I have no problem with someone lighting outside. I do have a problem with someone casting aspersions on those who light inside, which, at least in ch”l, is the predominant minhag and obviously has been since the sha’as sakana.