^YET. Maybe this is a place to ask for: Most Wanted Features ? 
There is a whole community around the BGE. And even now, after all, i see people creating games and tutorials for the BGE. I also think that Armory has more potential and is more flexible plus the performance is better. Some people might wait until the few kinks are ironed out. But i see a lot potential for virtual visuals in the future! The most BGE user switched to Unity. Some to UE … but don´t forget, there is always a younger audience, too. And Armory is WAY mor intuitive and easier to learn as the big ones.
Another thing is the comparsion thingy. Armory comes already with some Archviz (?) examples and it looks like a render, which you can play in realtime. I do not see a big difference in Quality here. But yeah, a bit more pictures on social media and youtube would be helping to spread. Like the youtubers of this forum already do.
Just my two cents 
Happy armor-y-ng