No, CRTs are still much better than sample-and-hold screens (OLED or LCD) with regards to motion clarity.
Short version: Our eyes are constantly tracking objects on screen ("smooth pursuit"), which leads to visible smearing on OLED and LCD screens, because they hold their frame for the entire frame time rather than just flashing them for a short fraction of that time. Especially fast paced and side scrolling games like Sonic look much better on CRT screens. (But CRTs have much lower brightness and hence contrast than modern screens.)
Short version: Our eyes are constantly tracking objects on screen ("smooth pursuit"), which leads to visible smearing on OLED and LCD screens, because they hold their frame for the entire frame time rather than just flashing them for a short fraction of that time. Especially fast paced and side scrolling games like Sonic look much better on CRT screens. (But CRTs have much lower brightness and hence contrast than modern screens.)
Full explanation here: https://news.ycombinator.com/item?id=42604613