Yes, I think we should always be skeptical anywhere that governments would tell companies how to design their products. That's not the place of the government. What I was mostly talking about in that earlier statement was that there are ways to design products that protect a vulnerability in the human animal.
If we know that a slot-machine style of social validation which doses kids every 15 minutes has this addictive effect and generates fear of missing out, we could start by understanding that kids are vulnerable to that, and design to protect against that addiction.
If we know that colour rewards light up your brain, and notifications buzzing against human skin at a certain frequency and rate tend to stimulate anxiety in your nervous system, we can start by understanding that there's a different way to design and protect against that happening.