They’re used in hotel restaurants, canteens, cafeteries etc. for making a uniform product when serving many people in a buffet.
It’s alright, I guess. Eggs are great for this kind of product.
It would be nice to save the plastic bag and just make actual scrambled eggs, which is about as difficult as opening the bag anyway. However in kitchens like in hotels where the staff is new every month, it’s an easy way to keep that dish from fucking up.
I was once at a 4 star hotel where a chef would cook each dish of scrambled eggs individually for each guest from a selection of additional ingredients and spices. Sure it was a luxury experience, but I could as well have eaten the bagged eggs and added some stuff myself if I actually needed mushrooms and peppers etc.