Because she's too fat for one! She'll need an O ring as one instead.
To be fair, in the United States of America, there are national days dedicated to certain food items. They're more for promotional purposes of said food items. Having said that, it still should not be an excuse to celebrate a food day with mukbangs of that certain food item. For example, just because it's National Pizza Day, where pizzerias may offer sales and promotions on their pizzas, doesn't mean it should be celebrated with a pizza mukbang. I hope no one gives this idea to Amberlynn as I rather not be responsible for a bariatric patient's death one way or another.