I don't think that's fair. You can 3D print doodads and spin up an AI business to sell them, but it's not the same as selling a quality tool that's been forged in the failures of previous versions. Skill is still a moat.
I disagree. The moat is now is your marketing skills. Look at music artists on Instagram trying to play the algorithm to gain visibility. That is what is coming to knowledge workers who sell their output for a living. Your quality tool still needs to be found and the more tools are out there (regardless of their quality) the harder it is for yours to be found.