Mayonnaise Style Sauce ingredients: Soybean oil, Water, Liquid egg yolk, Vinegar, Sugar, Salt, Mustard seeds, Mustard bran, Xanthan gum, Potassium sorbate, Calcium disodium EDTA.

Miracle Whip ingredients: water, soybean oil, sugar, vinegar, modified cornstarch, egg yolks, salt, mustard, spices, potassium sorbate, calcium disodium EDTA, dried garlic.

Thankfully you don't have to be too concerned. It's for the same reason Miracle Whip doesn't actually call itself mayonnaise, and Hellmann's Real Mayonnaise does. Mustard, garlic, etc., are not mayonnaise ingredients.