I've been Sicilian my whole life 🙂 and I take offense that somehow lasagna is considered non-traditional. We always had lasagna & Caesar salad on Thanksgiving-even before I was born my brothers said grandma would make it for as long as they remember. We also had all the other stuff: turkey, different vegetables, 50 different kinds of starches...did I say Sicilian? Now we do it for Christmas, since we go out for Thanksgiving.
As for some not being up to par, I think the timing factor has been ingrained in them with watching these challenges. They have it in their head, they need to be quick, so let's take shortcuts-but not the good kind. Don't use something pre made if it makes up a great part of the dish. I also think the idea of working in another culture, but it still Thanksgiving is a bit odd, IMO. Mainly because if you have another culture-you don't try to make them confine to your traditions. I have a sister in law from Jamaica-so it's food from there that she brings in. It BECOMES part of the tradition as it is.