Yes I’m aware.
Ok, so you’ve arrived at your destination of thought from your Youtube comment all those years ago for a “simpler way”, with Tailwind being the answer to your dreams.
But …
I’m guessing most designer types will still feel your above statement even with Pinegrow 8 at its current status (features, workflow, UI / UX, complication). I’m guessing most designers both pure or hybrid are not turning to Pinegrow in droves from other more design centric offerings. Because in addition to the ease of execution of their ideas they require much more than a basic static Tailwind page concerning site features for delivery.
But if you’re saying the vision has arrived with Pinegrow 8, then I guess it must just be down to marketing, tutorials, documentation, or something else concerning winning over more of the designer types towards Pinegrow. Since it’s now as easy as you once envisioned. Though so far I’m not seeing a flood of designers engaging here at the forum or excited talking about what’s now possible with PInegrow across the web? Sure as developers we can applaud the advances, though not much fanfare from these types is out there either.
Concerning Tailwind, I think maybe RapidWeaver Elements highjacked your original dream and are bringing it too fruition. 
They seem to be developing a pure and easy visual way of working with Tailwind, though seemingly just for Mac, which is probably fine concerning most designer types.
PS: It appears Pinegrow Theme Converter has again fallen behind, though 7 months is not as bad as the previous record of 3 years. 