There were two experienced pilots in Lion Air 610.
In the case where prescribed procedures are followed, and don't work well enough (i.e. you're still stuck in a bad situation that continues to degrade), you're basically asking for experience to manufacturer an alternative on the spot. That's rather like a Hail Mary pass, in terms of logic. It's a 'well maybe maybe not'.
I'm not sure how that progresses the conversation, and yet people on HN keep bringing this up as if it's relevant without actually showing any new dots let alone connecting them. Setting aside hard evidence proving experience is a factor, you don't even have a hypothesis of how it might be a factor.
He had only 200 hours of flight time. Well so fucking what? You have to make the case. It doesn't make its own case. The reason why the U.S. has a higher regulatory requirement for experience is because of Colgan Air 3407, in part, even though the experienced pilot in command showed the same incorrect response to stall warning as the second in command, both of which were contrary to training, and also the training itself was inadequate.
I've got quite a lot more total time experience than the second in command of the Ethiopian airlines pilot. I can't tell you with any meaningful certainty I would have done anything different.
I'd say my life experience is more relevant than my flight hours experience. And my life experience when encountering either human or computer confusion at only 1000 feet above the ground, is to consider it somewhere between incompetency and sabotage. I would not be diagnosing that shit either way, I'd disconnect all of it.
And I would be irate at discovering a form of autopilot (MCAS is a safeguard, or control law) that I was not previously informed of by either my airline, or regulator, or the airplane manufacturer. And in fact, U.S. pilots are pissed at exactly that. Including or even in particular the ones with 1500+ hours.