Patent held back the development of 3D printers, and accessibility of 3D printing in general for everyone. I now see weird and clumsy workaround to avoid patent

Patent held back the development of 3D printers, and accessibility of 3D printing in general for everyone. I now see weird and clumsy workaround to avoid patent lawsuits for things like conveyor belts as well lack of certain commercial goods such as heated chamber. Just because someone is an innovator doesn't mean they are for continual innovations or for the spread of innovations or like the idea of people building on their works.