Cards on the table: for Google money I'd do it too. If they want to enshittify their product until the competition has a fighting chance, who am I to stop them? Sure, it's an annoying and anticonsumer thing to do. But making a "free" product's bad qualities harder to circumvent isn't the ethical hill I'm going to die on.
The copied instructions are for the from scratch variation. The OG with premade mayo has you huck everything in there, and that's what I typically do. I usually mix the mayo and water before I add the rest of the ingredients so I can get the consistency right, but I don't think it would hurt anything to wait to the end. We mix it with an electric whisk just because it makes for slightly easier dishes.
Cards on the table: for Google money I'd do it too. If they want to enshittify their product until the competition has a fighting chance, who am I to stop them? Sure, it's an annoying and anticonsumer thing to do. But making a "free" product's bad qualities harder to circumvent isn't the ethical hill I'm going to die on.