Alright.
90% of the people who post questions on this forum are new to keeping ball pythons.
That being said, the information "regurgitated" is reflective of the original posters experience level.
If it was easy to house ball pythons together, then we would tell people to go for it. We don't because for the most part, newbies have no clue. The setups are usually wrong and they don't understand their snakes yet. Many of them don't know the signs of problems. Most people think that a cruising snake is a happy snake. Most people think that when the snakes are laying on top of each other they are "cuddling". Some people won't even notice if their snake is showing signs of an RI.
Now if someone came on here and said "hey I have been keeping ball pythons for a while and I really want to try cohabitation them. I think I know enough about these animals to pull it off". More power to this person.
It really just comes down to the people we are providing information for. This is generally a beginner forum and cohabitation isn't really a beginner subject. If anything this should go in "advanced husbandry".