Absolutely a Hoagie needs a day, especially those party-size ones.
True, some are a stretch but in this age of trying not to offend anyone/anything by omission it's just easier to give everything a day and only celebrate the ones that are meaningful to you (like Oyster day for me).
I just discovered Amoeba do not have their own day, they deserve a day. Make a day for them, after all Amoeba are people too.