The decision was made to unpin accepted answers, per Do we want to unpin the accepted answer from the top?. There was a good argument for why this was a worthwhile experiment, even if some of us had reservations.
It's been about 6 months since this was implemented, and that's probably enough time to see how things are shaking out. Get the temperature of the room so to speak.
What examples have we seen where where unpinning the answer was crucially helpful? As in, we would have fundamentally misunderstood/misconstrued/"mislearned" the concept asked in the question, if the accepted answer had still been the pinned answer.
Anecdotally, I've seen several instances to the contrary, where the right accepted answer was buried because it came too late to get upvotes while the question was hot. And I've not yet appreciated having the accepted answer not be on top. But perhaps that's just me.