Yes so does mine ,great out of the pack then goes floppy!
Put it in a dish of water to liven it up this normally works with lettuce leaves , my pigs don't mind it floppy ,I buy a pack a day though from aldi it is 35p they can scoff a, pack between them between 8 , I think that's okay?
Have you thought of growing it as it can be grown in pots in the house and it can go outside after the frost. If it gets established in your garden it can be covered over winter ,I have some in a pot but it was sewn late summer so didn't get established.
I am planning a guinea pig veg garden this year ,as the French beans are so easy to grow and the dwarf plants look really pretty ,can be planted between flowers or anywhere really.