I don't like this advice, because most people do not know how to create and use these things safely and securely, i.e. created on a clean and airgapped computer, and only ever recovered on a clean and airgapped computer. Most people would create these back ups by writing their seed phrase in a text file, copying it to their external storage, and then deleting the text file, all on their usual every day computer while connected to the internet. I'm sure I don't need to point out to you all the things which could go wrong with such a method, but many newbies will be unaware of the risks involved. Conversely, everyone is able to write down some words on a piece of paper safely and securely. I agree redundancy is mandatory as I mentioned earlier in this thread, but you can achieve redundancy simply by making more than one paper back up and storing them in separate locations.