No shit they're paying for some marketing. IDK who was expecting otherwise. They're not stupid. They're not so apathetic they're just gonna roll over and take it. Sure most of the manufacturers are also in the electric stove business but they've got huge capital investments in manufacturing they don't want to lose so when the executive announces out of the blue they're considering a ban of course they open the marketing floodgates in response.
Marketing is one thing, astroturfing is another. Companies are free to do it, of course, but others are also free to call it out as the deceptive practice it is.