The hardest part of moving sites to GHL is the lack of tailwind CSS support. If I could enable tailwind on a funnel/website, and then style any element by just adding css class names, 90% of my frustrations with the website builder would go away.
I don't know how everything is setup on the back-end, however, adding a tailwind build step to your build command for a website shouldn't be too tough. I feel like this is low hanging fruit that would make your website builder SO MUCH MORE POWERFUL.