Interesting take regarding the "don't build stuff that makes you dependent on Google" -- I definitely can resonate with that.
My motivation for building this was more so to capture a larger audience of people by integrating my website with software that so many people use, namely Google Sheets. And I see my audience to be non-technical who might want to build and host a quick form to collect emails or create surveys. They can do this without having to set anything up like a front-end or database.