Earlier quoted context omitted.
I will up you. Using the word "vanilla" to refer to anything neutral, default, or basic is wrong. Vanilla is a sophisticated flavor, not to mention a precious and expensive ingredient. Most people have never consumed real vanilla in their lifetime.
Similarly, using the word "original" to describe plain potato chips is wrong. It's the most unoriginal flavor of the lot. Just call it "plain".
> Existing at the beginning of a particular period, process or activity.
The original meaning of the root "origin" comes from Latin: to rise -> beginning, source birth.