The main reason that I'm wary of GMOs: not enough time for testing. Any medication, any technology, anything that may affect the body, it sometimes takes a generation or more to find out the side effects. What seems perfectly sensible, logical, rational in the now may spawn unexpected consequences 40-50 years from now. I try not to be an early adopter of much anything for these reasons. Also, I'm old enough that my inchoate, knee-jerk response is that GMOs come from the devil, and microwaves are the spawn of Satan, but I know that's because of my age. Inversely, some years ago, when I had a cat, I posted to my online blog how I was making my own cat food, listing out the ingredients, the research I'd done, how much better my cat seemed to be doing (damn, that cat's coat got glossy). And it boggled my mind, the responses I got from people saying what I was doing was wrong, that the only thing you're supposed to feed cats is pre-manufactured, commercial canned and dry food. Sometimes technology comes full circle and spawns resistance and stupidity.
GMOs undergo significantly more testing than any other food product. Other food products through genetic changes can be constantly changing (although this doesn't apply to many non-GMO plants which aren't changing genetically), and these changes aren't being tested at all.
There are 3 different regulator bodies in the US which regulate GMOs In Europe every single GMO product must be approved before it can be used The article that you're commenting on has the following sources which say that GMOs are safe. World Health Organisation
Sadly, that blog's no longer active, I deleted it, and have no idea if I ever archived. However, I will now do a google search to try to find an online recipe that closely matches the recipe I used... (ctrl-tab, tab, be right back...) Okay, this one seems pretty close: https://www.care2.com/greenliving/gourmet-kitty-homemade-cat-food.html/2
You know those clunky tins of salmon that's all greasy with skin and looks gross when you open it and it's really inexpensive? That stuff is amazing, once you pick the minimal amount of bones out, cost-effective.