I'm not certain I see the complexity, but I will defer to those who know more about non-Latin languages than I do. But, I will say this - confining complexity to only those places which add complexity is a design strength. There are many problems that have complex areas. As long as the complexity doesn't spill over, that's a good solution.

Basically, I'm attempting to offer a new language, so to speak, with which to talk about the problem. If all symbols are assumed to have a unique expression in a set, then defining a subset is much simpler than it is to merge sets that don't have common ground. One has to start somewhere ...