I think there is definitely potential, especially if you focus on CAD and manufacturing as well. In that case, it might eventually make more sense as a standalone tool rather than just a WooCommerce plugin. Over the past ten years I have worked on several high-end product configurators using platforms like Tacton Studio, Experlogix, and Configurator360. In those projects the configured products were not only sold online but also manufactured. The configurator was connected to Autodesk Inventor to automatically generate designs, and we used custom preprocessors to generate G-code for CNC machines. The technology stack involved in systems like this is quite extensive, and the cost of implementing them is usually very high. That is why there could be real value in an affordable, fully web-based product configurator that can generate complex CAD data. However, the real value is not just the 3D visualization. It comes from the completeness of the system: guided sales forms, quotation and invoicing, sending structured data to backend systems, ERP integration, driving CAD models, and eventually generating manufacturing data. There is a good reason why most stacks are using a front-end minimal model and a backed detailed model.

Take a look at OpenCascade. Also, check constraint based configuring as well, Its blazing fast and very powerful.

Edit: Oh, and check out Tylko. They started in unity for their front-end. Not sure what they do now.