I'm prepared for that possibility, but I would be extremely curious as to how they solve the problem. The way I see it is it's to do with your target audience's training and education, and you can't improve people's training and education by programming alone.
World editor(WE), the map editor of Warcraft3(Published 10 years ago and still alive)
Galaxy, the map editor of Starcraft2
Maybe they are good examples of 3D game editors without too much audience's training and education.
(Like the structure of "condition/action/group" on Construnct2, Blizzard named almost same things by "event/condition/action/trigger")
Especially WE, You can't do too much on WE 3Dmodels,
you can just make them with 3dsmax5.0, import them in and play their animations,
but it just "enough" for normal use.
With the inspiration of WE, we have Tower Defense everywhere, Zombies vs Plants, LOL now.
Some features are not necessary to be "perfect" I think,
what's important is widely acceptable,
stable to show-off(see? we can make something looks like 3D game!!),
and has chance to make money back.