View attachment 1300743
Excuse the very crude drawing.
I marked 5 lines on this image, which all meet at very shallow angles, making it impossible to say which line continues into which.
You are choosing to interpret blue, red and purple as one line. Why is that any more valid than e.g. green and purple forming one line, or yellow red and purple, or them all being separate lines?
The letter of the law doesn't say anything about this at all, so it also doesn't say that blue, red, purple is one line. You are the one interpreting it as such, because it's an undefined grey area. Therefore you cannot say that by the letter of the law it is one line and the rules should be considered for the entire line.
The letter of the law here is not "It's one line", it's "it's undefined and therefore up to interpretation"
Edit: I'm not saying that your interpretation is wrong (it's a valid interpretation according to the rules), I'm just saying that it's not the only valid interpretation according to the exact letter of the rules