She's correct in the very personal sense, of course, as well as in the sense that you can put almost any module in any ship and make it work against the current crop of NPC's. That "being correct" will run into a brick wall if you encounter another player who's hell bent on sending you to the rebuy screen, and would be incorrect if Fdev ever decided to give the NPC's some teeth.
Everything in that post was correct. If you’re not good with fixed weapons gimballed beams might be a better idea, as an example. It depends on your skill, what you prefer and what you want to do and much more. Very much personal. It also depends on what ship you are flying. And the comment about trolls is correct too.