Well, that may be true, although the only electronics used here is the slight reverb. All echo effects are performed by fingers. As you may know, similar enhancements are made with architecture (e.g. church walls, dome ceilings, specific acoustics in opera halls). So that I wouldn't be so radical in judgements, otherwise we can call many things cheating. Chorals performed in open air and chorals performed in an orthodox church are way too different from each other.

Yet, I agree that initially balalaika was not intended to be used in opera halls. It was a cheap instrument for village entertainment, easy in production and thus widely distributed everywhere.
But what I wanted to show is that there are players who show the differences between balalaika and other guitar-like string instruments, demonstrating that there can be types of melodies which are sounding better with this instrument than (probably) any other.