Sounds about right, Youtube is only good for one thing now and that is watching kids play video games, and I don't do that. So many how to videos that are not really how to videos it's crazy.
I used to make a lot of money breeding tropical fish, I had clients all over the UK and I breed a lot all the time, i decided to take some time and look for a different breed, you know something that i hadn't tried before, I decided to go for some cold water fish koi. I looked on youtube and decided for the sake of it to take the advice that i had gotten from there as scripture, turned out to be so, so wrong.
I ended up talking to a guy who was old school in breeding fish and he told me the easiest way to do it. it was crazy the way the videos had been miss sold as what needed to be done.
So now i ask people who are old school for information because i just don't trust anything I watch on Youtube.
Nice the fact you took the time to help her, I bet she was glad you had been there that day, otherwise she would still be doing it the wrong way.