Interesting! I just remembered that there is another team that's working on plant based scaffolds (cellulose scaffolds from leaves like spinach) [1]. This one is from 2017. So I'm guessing that the interest in the technology hasn't waned yet. I also wonder if any biocompatible scaffolds can be 3D printed, rather than having to decellularize the available ones.

[1] https://arstechnica.com/science/2017/03/spinach-leaf-transfo...