Yes, you burn more fat as a % during steady riding, but more fat as a total during intervals.
You've got to be careful when reading articles. Many of these are geared towards the sedentary individual who can easily hurt themselves during 'weekend warrior' activity.
Everyone in the world is not looking to race, so you've got the self preservation factor.
One cannot do intervals properly greater than twice a week, so you've got to do both anyway.
I'd like for people to become more intuitive and see what works for them. (translation: just ride)
I used to read all the articles, then got enough info to be able to ride efficiently. Then it was a matter of tayloring rides to my needs.
Everyone has differing goals and levels of fitness. Mix it up. Have fun, and do what it takes to get better and stay refreshed mentally and physically. You know your body better than anyone else.