OK, raw oysters are NOT vehicles for sauce. Sacrilege in my book.
I think all that tabasco, horseradish etc. nonsense was to "hide" the taste of poorly refrigerated oysters in the old days. "Months with Rs" is also a throwback to the days before good refrigeration. Up here in Cape Cod, summer oysters are just fine. They actually taste better in the winter, though.
I had several TONIGHT, Wellfleets at their best, sweet, a little briney, and all I use is one little drop of lemon juice. None of that sauce nonsense. I want to taste the poor little mollusk that gave its life!
Plus, with the right tool and a little experience, it's real easy to open an oyster.