I am going to disagree with you here as well, but I don't really desire to get pulled into the weeds discussing semantics. I like
@Maggan as well but I also disagree with him about linear vs. railroad.
Sometimes the difference is mostly the eye of the beholder. Sometimes it's pretty clear that the difference between linear vs. railroad amounts to mostly splitting hairs, which is certainly an art form around here. Railroad doesn't specifically talk about this because the definition of what constitutes a "railroad" can be fairly broad and inconsistent from person to person or source to source.
So what this tells me is that your sense is that there is a difference between these two things. For other people, it's a distinction without a difference. You may fiercely believe that there is a difference between them, but is it worth souring your otherwise positive relationships with people here quibbling over it? I'll leave that for you to decide.
However, I have said that railroads can be a valid form of play for some people and play groups, and I mean it. If you view railroads solely as degenerate forms of play, then that's on you.