Why are you stating something that is not true as though it were a given, and then using that unearned precondition as the basis for your question? The premise is false. Artcraft is a complete fucking trainwreck, nothing more than scamware that falls apart as soon as you poke beyond the deceptive facade that was used to build hype.

(That said, on the scale of blame for it being bad, I would say the GUI framework accounts for 0% of that and the programming methodology accounts for 100% of that)