Along with the other mentioned things, some people don't like the idea of animals being killed for food (like my DD1).
Only kind I will buy!!! Like Debby said, you can make your own without the preservatives. You can decide which oil you want to use as that will affect the flavor. I don't use mustard, my recipe (from the web) is oil, egg, vinegar, sugar, lemon juice.
Apparently it is real meat, grown from protein cells extracted from an animal. Not mad scientist chemicals and plant materials combined to pretend to be meat.
Yeah, sad. But if there is a bright side, the sub imploded so the 5 guys didn't slowly suffocate. I doubt they suffered, death was likely instantaneous.
Looks like sumac