What reason do you feel offering free hosting would be beneficial to your business? For me -!; mine, it’s not ever been but the audience your targeting may be different 
As to the Code I’ve never downloaded it directly and use webflow but I would say with anything that’s building something for you that you should know enough about how to fix it if something isn’t to your liking or something breaks unexpectedly. I often am tweaking stuff inside webflow and would assume the export would be the same