The thought behind the original suggestion was for a FtM who is feeling a little uncomfortable and perhaps worried about someone accosting them.
I too have spent time in the mens, combing my hair, or having a chat with someone.
But for an FtM, who's just starting to use the men's room, that might be a bit too much.
Once they have been in a few times, got use to the environment, relaxed a bit, they won't need ay advice at all.
I re-considered it, within the context of that post, because, after some thought, I realised it might need some clarification. The post was intended to sum up, briefly.
When I was living as female, I went into the lady's room a few times.
First time, I was so scared, I was shaking. I was dressed as a female so couldn't use the mens and I really needed to go. I really thought I was going to be attacked by a bunch of big women before being dragged out by some burly guys and beaten to a pulp.
I went in. Into a stall. The hardest bit was starting. Left the stall, washed my hands then left.
There were several women in there, not one took a second glance at me.
So, the only point I was making is that, using the rest room, relax, be confident and just do it.