As stated in the article most of the studies do not control for diet. So they are essentially studying the effects of HIIT on its own. I think we all know that on its own any exercise regimen is not great for fat loss. The article at one point also states that 60 minutes a week is not enough exercise for fat loss, which is true only if you are not reducing calories.
When it comes to which cardio is better, it really does come down to the individual as in the end HIIT is not going to be as superior as previously though compared to LISS. Fighters and sprinters and pretty much any athlete that is performing intervals in their sport would want to increase their VO2 max and train with HIIT. Just an average Joe gym goer who wants to lose some weight shouldnt care about that.
Me personally, if I do intense cardio my appetite becomes out of control hence negating any positive body composition benefits from doing the activity. So if I do cardio I just walk for 20-30 minutes.