I don’t think that marketing the snake as a delicacy would do anything but increase the demand for the snakes. When incentives have been advertised and paid for invasive species in the past, breeders immediately started cashing in, so there are limits to how much nudging you can do, and how you can do it, or you will have rewarded bad behavior and perhaps created negative externalities that did not exist before.
I was trying to explore the idea of farming them and what would happen if consuming them became popular, which is likely farming them unless prohibited, which would probably be cheaper than catching them. If the wild ones are higher in mercury, then farmed ones might be worth less even though they are healthier, due to potential subsidies to promote eradicating them and charges due to it being a wild caught novelty menu item. This could create perverse incentives leading people to adulterate farmed pythons to pass them off as wild ones. I think the entire idea is fraught and isn’t as simple as a comment thread might make it seem, not that I think you are minimizing the issue. I just don’t know if any individual comment can do the issue justice, so it’s hard to explore the issue in bite size pieces.