First of all, a great product… I really enjoy the ability to make great apps of any size with it. However, you might want to offer a self-hosted editor experience… and focus your revenue on the hosting. There is no guarantee that Plasmic will still exist in a few years and building a large-scale project using the editor is a risk factor currently. Of course, using code-gen, I can theoretically edit the code right away… but that would kind of be a pain in the ass.
Additionally, the limited page views on the pricing page is quite misleading when using the code-gen variant of Plasmic (which is the only one relevant for me)