All great points. It looks like you have a grasp as to what you’re trying to do. I think you’re on the right track. I’ve been researching for 2 web builders, one for easy hosting development, the other for more advanced clients that need full control.
Without a doubt, Webflow is the best on the market for category 1. Plus the CMS and Interaction feature is second to none for a hosted solution. No one even comes close after researching.
The second option, I’m still searching. Pinegrow may be the next option to consider if you need external control, etc. So I’m with you on making sure you have multiple options!
I like your approach, I don’t think you’ll get much push-back using this format. I don’t code, so Dreamweaver was a tough choice. I think your clients will fit in the same category; wanting functionality without a massive learning curve. If I were you, I’d definitely create a document sharing all these features; CMS, animation, no server management, editor, ecommerce and no memberstack for membership. All of this will justify your pricing!