> stop doing group buys and force companies to take on the risk to create an actual in stock product

Large companies don't take risks on something that historically sells so few units. GMK just make what you tell them to. They don't design anything. The people who design them are just community members like you and I. We don't have 5 figure sums of cash just lying around. Even a successful group buy for keycaps sells just a couple of thousand examples, including extras. The risk is very high, and the cost are significant.