Tuners have been around for decades. Tuners with muzzle brakes have been around for a while as well, Eric Cortina did not invent the tuner muzzle brake, there's many systems that existed prior to his. A tuner is a weight that moves back and forth at the end of a barrel to influence barrel harmonics, there's only so many ways you can do that. Just like how there's only so many shapes that a car tire can be made in. Did Bridgestone copy Michelin?
While Insite is not inventing anything new here, they created a product that allow people to use a tuner directly with their Heathen muzzle brakes. Tuners are growing in popularity in different precision rifle disciplines, and Insite obviously sees an opportunity to create a product that some end users are requesting. I'm not sure what's so wrong with that. More options is always better for the consumer, and Insite always comes up with quality products.