Firstly, I didn't mention FL Studio at all. Why do you attribute a notion to me without any sign of me thinking so?

Secondly, there's a clear distinction between taking cues and reusing a harmony or a melody from another source. People have always done it and will do it more than ever, if they have the right tools.

Of course, it only matters if we still think about music as more of an art form than a production of non-material goods. Hope we still do.