I was hoping that the pendulum would swing the other way with the scandal over too many passengers bringing out their bags on a recent AA evacuation caused by a burning tire. The push to eliminate checked bags has created a chaotic cabin environment that probably exacerbated the situation. There's no sign of it getting better either. The overcrowding of overhead bins creates a prisoners dilemma where flight attendants pressure passengers to put smaller bags under their seats, disincentivizing bringing anything but a big roller bag.
[1] https://www.youtube.com/watch?v=8l2n-di3hJE