> Wider GPL adoption is central to the discussion!
Sure. And so the question is, did the GPLv3 improve or degrade adoption of copyleft licensing?
To quote from Star Wars, "The more you tighten your grip, Tarkin, the more star systems will slip through your fingers."
Like it or not, companies fund the vast majority of open source software development, not hobbists, and when the FSF tried to "tighten its grip" by making a license which moved the balance of benefits more towards free software users, and away from the companies which funded the work, things didn't go well for them. And so what the FSF has found is that the the goals of the free software manifesto has been, more and more, slipping through its fingers.
Unless you can make non-free software illegal across all countries, at the end of the day, you need to find a balance where all stakeholders are comfortable with the result so that users, developers, and company freely and happily choose to use free software. This is a negotiation, and if there is more value that can be gained by signing onto the free software ecosystem, then perhaps the balance can be shifted a bit more towards the free software goals. But until you can, given that most open source developers do like food with their meals, a successful open source strategist has to be grounded in the economic and business realities. Just raising your right hand in a fist and shouting, "power to the people" and "freedom" is generally not going to get you very far.