Because that's a premise of a fair market? I realize there are plenty of examples in other industries of companies suing their way into dominant market share, but it's a practice that's just antithetical to a free market. If someone makes a better product (that complies with regulations), in a fair capitalist world competitors need to catch up. Not engage in shady tactics to bully their customers into accepting their own.
I realize America doesn't work this way but it's something I think a lot of people would agree with