I think we have already fixed the plot naming. Did you see that in the video?
About the communication: I can understand that. We try to communicate clearly that we both are commercial and support Open Data. It's not easy, however. Especially when people see you for the first time.
According to your perception, where could we be more clear on the communication?
I think you should mention it near the top of the demo notebook linked here, if it's intended to be a main entry point. I looked at the notebook and videos before heading to bamboolib.com, which has the first mention of pricing, at which point I felt like I'd wasted my time (because I'd gotten the wrong idea). I think most people are used to anything demoed in a Jupyter notebook being open source.
I think you should be much more up front that this is a commercial product, because very few things based on Jupyter and Pandas are.