You just don't know how to cook. Small changes in cooking styles as per the ingredients your using is what cooking is. Technique is as important as ingredients.
It takes years to learn to drive well and be comfortable at it. You can read all the books about drivong but until you actually do it you are terrible at it. Even after you start youre still terrrible. It takes time and practice. Cooking is the same. You need practice to build the skills to know what works and what doesn't. You can't assume because you read the book you know it all.
I feel like you're very passionate about this and good on you!
But some people may not even want to know how to cook. They want to read a recipe, cook it, and have an okay (or maybe even spectacular!) meal from the recipe.
Recipes are there as instructions for what worked when somebody else did it, they aren't supposed to be teaching you how to cook, they're saying 'do these steps exactly this way and you should get some decent food'.
If the recipe was for a different meal and someone has just changed the ingredients because bAcOn, this isn't a recipe based on something somebody did, instead it's a recipe for (chuckles to himself smugly) disaster.
Telling people it's their fault because they don't know how to cook and should know better than to follow a recipe just seems combative.