I missed the word UP and instead pulled the wires straight out, which ended up with me holding the wires but leaving the plug behind in the socket. I just ordered a replacement fan from ebay, since ifixit is out of the one in the correct amperage for this unit.
I then edited the guide to capitalize and bold the word “UP” and hopefully that saves somebody else a bit of hassle.
Any step with a lot of comments is one people have trouble with. It might be useful if ifixit were to make it more obvious we should read the comments, at least for those that have a lot of them. It would save a lot of people a lot of hassle.