I see it as a typical disruption, someone building a product that offers the same benefits, or more, at a cheaper price.
Patent laws are quite strict when it comes to medicine, for example, in the US, and generics are not allowed at all. In the case of the Fender, there are a lot of proprietary design choices, I'd think.
Of course, I recognise that this stifles consumer choice, which is always a bad thing. But from the perspective of the company, it might make ample sense to defend the shape that it designed.
The Strat body and tone just work. Perhaps Fender doesn't think consumers need a better mouse trap.
Nothing stops other builders from making a new shape. The Strat body and neck, though, have real history in the music industry, and these builders and influencers may not think of the cost of developing a guitar that has sold well for almost 70 years now.