Using the slip form method, can you sculpt on the cob walls after you take the forms off?

I just posted this video if you want to check it out!

https://youtube.com/shorts/xYsTpBLh8vQ?si=Y5zlqn7Qo1y7ij7E

A student shared this video with me. Would you install a cooling system like this if you could?

This is the Cob and Natural Building School. A community of people interesting in building natural, healthy homes. We teach everyone how to build their own cob home using traditional and modern techniques. Step 1: Comment Below! - Who you are - What your building goals are - What’s your biggest bottleneck right now? 😩 Step 2: Go through the Cob Building Basics Course! See START HERE - COB BUILDING BASICS