Even the slightest bit of proofreading can prevent this from happening. It's pretty obvious what happened here. The person tried to pop the instructions in Google translate, but they must have kept the setting on English to English and not realized it. The thing is, you're not going to get a good translation for these types of directions on Google Translate. It's going to come out as nonsense anyway, but nice try. Google Translate might be a great tool, but it's got flaws. You can't trust it to write a love letter to your Spanish lover.
You'd think that companies would go through the process of hiring a Spanish speaker to translate instructions, but that would cost money. Why would a company ever do that? It's easier just to hire the intern to create the packaging. They're not getting paid, so why would they proofread what they were doing?