What is the intended purpose of them? They give you a lot of blueprints in one go but are worth very little if you try to sell them. Individual blueprints are worth a lot more, but for some reason they are a much rarer find (at least in my current playthrough). Is it supposed to be that way?
Edit: In my current playthrough I must have found all the blueprints bundles vanilla has to offer multiple times, but very few single ship blueprints (often were already unlocked when I found them).