Probably just you. This product is indeed capable of changing the world for the better if scaled up. "Saving it" is hyperbole. But it's not about making a nice meal for vegetarians, it's about sustainable meat consumption for a growing population.
Meat eaters will eat fake meat if economics incentive them too. You don't need to completely switch over to impact the world. Growing meat is a substantial waste of energy and nutrients. Unless you think we will never struggle to produce enough food, it's hard to reconcile how you can think we won't run into issues with meat.