> a lack of innovation

This is a recreation of a retro classic but in terms of new flagship hardware synthesizers there isn't much innovation because music synthesis because the gating factor is DSP and a well-configured modern laptop generally has more than enough power to generate just about any kind synthesized sound used in commercial musical performance. The innovation is happening in software plug-ins.

Synth hardware is generally for live performers or those who don't want to work with a MIDI keyboard connected to computer as their primary interface.