The guidelines say that most political articles are offtopic. Most != all. The question is what should be in the setdiff of all - most.
About that, there are lots of past explanations: https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...
Edit: more at https://news.ycombinator.com/item?id=48724830 in this thread
I'm aware of what you've said about this in the past. I'm expressing my disagreement. HN would be improved dramatically by a significant change in where this line is drawn.