From a USB C charger perspective, many of the banned brands were actually quite good , selling GaNFast chargers which are as good as it comes. Most of what remains is unknown.
It's hard to blame these companies , Amazon pretty much made the place such that once one brand started doing this, you were dead if you weren't.
So no, I do not see this as a good thing. There are other steps they could've taken but no.
Stopping co-mingling would be one but I haven't heard them doing so.
Curating products and taking responsibility would be another but LOL.
As I mentioned before, my favorite product on Amazon demonstrating the utter lawlessness of a place is a powerstrip with a C5/C6 coupler input and a few NEMA 5-15R sockets. It ships with a CEE7/16-C5 cable (!!) and a couple plug shape adapters. I have been trying to decide for years whether it's a bigger fire hazard than an electricity hazard but I just can't make up my mind. Without a doubt, if a retail store attempted to sell this, it would be closed down, razed and the place sown with salt for good measure. Or at least fined into oblivion. It claims to have a TÜV Süd safety mark, it's obviously a fake one -- I'd pay good money to see the face of a TÜV Süd engineer when they see a power strip with a 2.5A input feeding 15A sockets. And of course losing ground because who needs the safety ground to be connected to ground. It is 4.5 stars with 7966 ratings and an "A" from FakeSpot.