It's obviously not a product for people like lizzzi or myself with collections of mason jars and relatives to ask about pickling techniques! And if it was $12 or something, I'd agree with you all...but the same store sells small cukes by themselves, usually for $2.99/lb bag which is pretty on par with mainstream grocery stores in the area (I rarely get them there because I know where to get them for less, but sometimes it's not worth the additional trip and I want my tasty cukes, so I cough up the extra $1-2). So, someone who sees it and thinks it's a cool idea, maybe as a project to do with their kids, whatever is paying a whopping $1 for instructions, a pre-made mix of appropriate spices and a bucket (which is probably recyclable, and a drop in the bucket of clamshells, baggies, etc of grocery packaging). Maybe it'll just be a thing they try once, in which case the $1 is definitely cheaper than canning equipment and a full set of spices going to waste; or maybe they'll like it and go looking for recipes and equipment. When I was growing up, my family started making stir fry by buying bagged meals from Trader Joes for when mom got tired of cooking; not long after that we did veggies from scratch + store bought sauce, and now I make it completely from scratch. It happens.
Baby steps are a great way to get to places, and I, for one, am glad that affordable baby steps exist that encourage people to cook (meal kits), to garden, to pickle, or any number of other tasks, even if their family has lost these skills in the past couple generations. I'm glad, even if these things are a little silly (the pickle kit made me giggle, which is why I originally photographed it). I'm glad, even if I wish they were unnecessary due to more people having the fundamental know-how and boldness to try things off the internet without this handholding.