I
will say the TM was incorrect: she was wrong and you were right. Sorry you got bad info from her. It happens.
And there is no "seem" to it. I've done CT several times (and single-rider and main), and I know almost by heart where it goes and where it doesn't. (I really need a hobby.)
Trust me!
ETA: My earlier quote about the TM being correct was based on my misunderstanding your post. You said something like "going through the line and not riding at the end" and I took that to mean a separate line, not the main line. Sorry for the confusion! Did that make any sense?