I think it's an important distinction - it's "easy to use" as in you can put things on the screen, play sound, etc without having to read documentation or deal with boilerplate logic/steps longer than the custom code needed. It's not "easy to use" as in Unity where you want to have some complex physics apply to some premade models with certain rendering effects so you learn where to go to get each of those things and how to drop them in together and bam you have a significant portion of a game made for you.

I.e. if you're goal is to make a more advanced game with some polish no it's not great. On the other hand if your goal is to get some simple stuff to appear on the screen in the way you want and interact with it it's great.