My reading of the article is that it has nothing to do with the author's trust or lack thereof for their lawyer. I think the author would agree that you have to find a lawyer you trust, just as you need a doctor you can trust.
I trust my doctor, and if it's a minor issue like needing antibiotics for something I just accept whatever they prescribe. But if it was a life or death situation I am not going to blindly follow their advice without any questions. I ask my doctor for their recommendations but I make the final decision. They may disagree with that decision but ultimately it's my life at risk and I'm the one who suffers the consequences. As long as you are reasonable and not trying to cure cancer with fruit I hope that the majority of doctors are going to support this.
When it comes to drafting contracts or other minor issues you should just trust your lawyer. But if the lawsuit has the ability to completely end your company I think it would be a mistake to do the same. But I'm not a founder so maybe my opinion isn't worth anything here. I've only hired a lawyer once for a landlord-tenant dispute, my lawyer gave their recommendations, I disagreed with it, and they said alright it's your money, but it ultimately worked out so we were both happy. I find it interesting that the author had trouble at first finding a lawyer who would agree to this arrangement because that wasn't my experience.
If you're going to do this, you need to do your own research beforehand. In my case I read all the relevant tenant laws before I even met with the lawyer. Today I might use AI to help with that, but I would be wary of hallucinations. I think the majority of the article is about this: just using AI to help with research before meetings with your lawyer.
At the end of the article the author says they are now using AI to draft legal documents and I don't agree with that but that's just me.