For health reasons, some people are advised to adopt a vegetarian diet, and naturally, they hunger (pun intended) for the taste, texture and filling properties of meat on occasion. Others choose to go vegetarian or vegan for religious or ethical reasons, but still enjoy plant-based faux meats.
At the end of the day, the best case scenario is that everybody gets to choose how they want to eat, and nobody worries about, or judges, what others are eating -- which is why I hope WDW will, to the extent practicable, strive to always offer a variety of options for a variety of dietary needs.