Hi @Ariba,
That's a bit comforting announcement for the next 3 years of support for the v3.
However, this still put most of the dev to start looking elsewhere.
Honestly, I am not sure why you guys went into following the Elementor's way. There's a reason why we are Joomla developers and not Wordpress. Because we believe in Joomla much more solid structure in comparison to Wordpress. We have our own identity that shouldn't be mixed up with the so called Wordpress Developer Wanna be.
My own personal preference is to built the site without any page builder at all. However, the existence of SPPB is great because it gives my customer easy editing feature while maintaining my ability to custom code the website to suit my customer's needs. All without creating a custom component like I used to in the past. The released of SPPB v4 changed all of that aspects.
Maybe this next sentence could be something to reconsider in regards to the back end editor:
Although I can see that you guys are aiming toward reaching out to more end users than developers, but the truth is, more than 80% of the end users didn't built their own website. They hire a developer to build it first so that they can maintain it easily. So, before winning the heart of the end users, it is WISE to win the heart of the developers first. Because end users wouldn't even know the existence of your component until we suggest them. It just a common sense thought.
Cheer!
Elliott