Agree. Maybe it comes down to the relationship between "creative" and "productive". They're related without being synonymous. I think "chemically" is just one way of accomplishing the goal of thinking differently but as it's a pretty reliable method (albeit an occasionally overpowered one) it comes up a lot.

I'll leave the discussions of whether the various drawbacks outweigh the benefits for another conversation but it's hard to deny that treating yourself chemically can be a very direct and effective way to ensure your thought patterns and processes are temporarily changed.