The following was party-shaming and mean:
"Unless this reception is going to end at 5 then you need to serve dinner, not snacks. Heavy appetizers would be appropriate if the wedding was at 7, not the time you have planned."
And this..
"Edit: I just saw that the wedding was at 4pm, meaning the reception will be at 5pm or later...you absolutely need to treat this as a full dinner and not as apps. Everyone will need to be fed. No way will people stay if you don't provide a full meal, they will be starving."
And this..
"If the OP doesn't worry about people expecting more of a meal at the 5-8 hour, the wedding is going to be "that wedding" that everybody jokes about. And not in a good way."
I think a carving station and pans of pasta are very good suggestions, along with increasing the amount of appetizers. I see no reason to hurt someone's feelings in a public forum and make them stress over whether or not their reception meets your "standards." No wonder the OP hasn't returned.

They are serving pork sliders, chicken fingers, and chicken salad sandwiches, so increasing the amount of those should fill people up just fine.
Even if you are a granny, that doesn't give you the right to look down on someone's special event. Elderly people should know better. ::yes::