Thanks for reply.
At first we used the approach mentioned in your post but it failed. Then we added all the subpaths in yii import config variable and it worked and never tried again the other way.
I'll try the way you mentioned also. It will reduce 13 line to just 1 in YII import.
I see you are not using phpdocx autoloader. I'll reply back after using mix of your and ours config options to see if it works or not.
Thanks