I would want to say : Stay with other engine if you have problems with Lua.
I think LE3 will grow (i hope) as time passes for videos on Lua and tutorials, different type of game making videos (platformer series, FPS complete game videos etc ..)
There is thousands tuts and vids in the other engine, caus of big community, it will be a lot also in LE3 as people comes to Linux,PC,Android,IOS game making.
LE3 is super new, and it needs terrains features and gopd enought rendering to attract more poeople.
Until then be partient and try to learn how work Lua scripts tutorials for now.