So what I gathered from this article is that the "danger" is entirely theoretical. No one has actually made this mistake, or even claimed to have almost made this mistake?
“But this is not the correct route and we often come across groups of inexperienced walkers heading towards Steall Falls or up the south slopes of Ben Nevis believing it is the route to the summit.”
https://www.theguardian.com/technology/2021/jul/16/google-ma...